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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Fair value, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Fair value, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Related Party Transactions [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Related Party Fees, Expenses and Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInDistributionsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Distributions Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInDistributionsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Change in distributions payable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInDistributionsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in distributions payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativesPayablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivatives Payable Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativesPayablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivatives payable percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativesPayablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Company Pays</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position Location, Balance [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RepurchaseObligationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Repurchase obligations.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RepurchaseObligationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repurchase Obligations [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RepurchaseObligationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repurchase Obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetChangeInUnrealizedAppreciationDepreciationOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value measurement with unobservable inputs reconciliation recurring basis net change in unrealized appreciation (depreciation) on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetChangeInUnrealizedAppreciationDepreciationOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Net Change in Unrealized Appreciation (Depreciation) on Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetChangeInUnrealizedAppreciationDepreciationOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized appreciation (depreciation) on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Fair Value Hierarchy of Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BankingFinanceInsuranceAndRealestateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Banking finance insurance and realestate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BankingFinanceInsuranceAndRealestateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Finance Insurance And RealEstate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BankingFinanceInsuranceAndRealestateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Banking, Finance, Insurance &amp; Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtInstrumentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long-Term Debt Instruments [Table Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeeDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fee, Description</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_WholesaleMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Wholesale member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_WholesaleMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Wholesale [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_WholesaleMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Wholesale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Amount Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions declared per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Per Share Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Per Share Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCommitmentFeeDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Commitment Fee Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCommitmentFeeDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitment fee description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIssuanceDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Issuance Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIssuanceDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share Issuance Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expenses:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromDispositionOfInvestmentOperatingActivity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of investments and principal repayments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromDispositionOfInvestmentOperatingActivity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Disposition of Investment, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Financial Highlights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock shares classified</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SummaryOfTotalSharesIssuedAndProceedsReceivedRelatedToCapitalDrawdownsDeliveredTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of summary of total shares issued and proceeds received related to capital drawdowns delivered.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SummaryOfTotalSharesIssuedAndProceedsReceivedRelatedToCapitalDrawdownsDeliveredTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Total Shares Issued and Proceeds Received Related to Capital Drawdowns Delivered [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SummaryOfTotalSharesIssuedAndProceedsReceivedRelatedToCapitalDrawdownsDeliveredTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Total Shares Issued and Proceeds Received Related to Capital Drawdowns Delivered</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Affiliated Issuer, Noncontrolled [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-controlled</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Receivables/Payables From Investments Sold/Purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Stated Percentage</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministrationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Administration fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministrationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administration Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministrationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administration fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total Cash and Cash Equivalents, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CumulativeNonVotingPreferredStockDesignatedPercenatge_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cumulative Non Voting Preferred Stock Designated Percenatge</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CumulativeNonVotingPreferredStockDesignatedPercenatge_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cumulative Non Voting Preferred Stock Designated Percenatge</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CumulativeNonVotingPreferredStockDesignatedPercenatge_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Designated percenatge</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SummaryOfDividendReinvestmentPlanSharesIssuedToShareholdersAndValueOfSuchSharesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Dividend Reinvestment Plan Shares Issued to Shareholders and Value of Such Shares [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SummaryOfDividendReinvestmentPlanSharesIssuedToShareholdersAndValueOfSuchSharesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Dividend Reinvestment Plan Shares Issued to Shareholders and Value of Such Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Net Assets, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Net Assets, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net assets, end of period</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersIntoLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersIntoLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transfers to Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fee Payable, Income-Based</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income based incentive fee payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementPositionsOrCommitteesResponsibleReportToBoardFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskBoardOfDirectorsOversightTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Board of Directors Oversight [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedAndUnrealizedGainLossInvestmentAndDerivativeOperatingBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss), Investment and Derivative, Operating, before Tax</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetailMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retail [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SubscriptionAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Subscription agreements.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Foreign Currency Contract, Asset, Fair Value Disclosure</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquitySecuritiesByIndustryAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Industry Sector [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SummaryOfInvestmentHoldingsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Investment Holdings [Line Items]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFrequencyOfPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Frequency of Periodic Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFrequencyOfPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument, frequency of periodic payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BorrowingsBaseLessThan16XCombinedDebtAmountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Borrowings base less than 1.6x combined debt amount [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BorrowingsBaseLessThan16XCombinedDebtAmountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Borrowings base less than 1.6x combined debt amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BorrowingsBaseLessThan16XCombinedDebtAmountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowing Base Less than 1.6x Combined Debt Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwardsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Loss Carryforwards [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FederalIncomeTaxNoteTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Aggregate Unrealized Appreciation and Depreciation on Investments Based on Cost for U.S. Federal Income Tax Purposes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FederalIncomeTaxNoteTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Federal Income Tax Note [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid Expenses and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expenses and Other Current Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskThirdPartyOversightAndIdentificationProcessesFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentDateOfFirstRequiredPayment1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Date of First Required Payment</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Fair Value Disclosure</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ContainersPackagingAndGlassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Containers, Packaging &amp; Glass</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ContainersPackagingAndGlassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Containers, packaging &amp; glass.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MediaBroadcastingAndSubscriptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Media Broadcasting And Subscription [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClassCNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class C notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AugustEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August eight two thousand twenty three.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AugustEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 8, 2023</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DrpProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">DRP Program</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DrpProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">DRP program.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BloombergShortTermBankYieldIndexMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Bloomberg Short-Term Bank Yield Index (&#8220;BSBY&#8221;).</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BloombergShortTermBankYieldIndexMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">BSBY</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ShortTermCapitalGainDividends_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term capital gain dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosures [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Paid-in capital in excess of par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital, Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Issuance Costs, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred financing costs net of accumulated amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Issuance Costs, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred financing costs net of accumulated amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfQualifyingAssetsToTotalAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of qualifying assets to total assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfQualifyingAssetsToTotalAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Qualifying Assets To Total Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfQualifyingAssetsToTotalAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of qualifying assets to total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossLiability_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossLiability_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Gross Derivative Liabilities in Statement of Assets and Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Gross Amounts Offset in the Statement of Assets and Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivatives liability offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Dividend Reinvestment Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">DRP Shares Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Shares issued from reinvestment of distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentVariableInterestRateTypeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Variable Interest Rate, Type [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Significant Accounting Policies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPerformingDebtInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of performing debt investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPerformingDebtInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Performing Debt Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPerformingDebtInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of performing debt investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ThreeMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Three month secured overnight financing rate (SOFR) overnight index swap rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ThreeMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Three month Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ThreeMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">3 Month SOFR</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPortfolioInvestmentsCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of portfolio investments, cash and cash equivalents.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPortfolioInvestmentsCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Portfolio Investments, Cash and Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPortfolioInvestmentsCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInInvestmentCompanyNetAssetsFromCapitalTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net increase (decrease) in net assets resulting from shareholder distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInInvestmentCompanyNetAssetsFromCapitalTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net increase (decrease) in net assets resulting from shareholder distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInInvestmentCompanyNetAssetsFromCapitalTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease in investment company net assets from capital transactions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInInvestmentCompanyNetAssetsFromCapitalTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease in Investment Company Net Assets from Capital Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfOutstandingVotingSecuritiesOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of outstanding voting securities owned.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfOutstandingVotingSecuritiesOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Outstanding Voting Securities Owned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfOutstandingVotingSecuritiesOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of outstanding voting securities owned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Computation of Basic and Diluted Earnings Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RedemptionOfPreferredSharesShares_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Redemption of preferred shares, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RedemptionOfPreferredSharesShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redemption Of Preferred Shares, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RedemptionOfPreferredSharesShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Redemption Of Preferred Shares, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of preferred shares, net of underwriting costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Preferred Stock and Preference Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionOrdinaryIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary income (including net short-term capital gains)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionOrdinaryIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distribution, Ordinary Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentUnaffiliatedIssuerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Unaffiliated Issuer [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentUnaffiliatedIssuerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-affiliated</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentUnaffiliatedIssuerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Non-controlled/Non-affiliated Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Earnings per common share, basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per share, basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInManagementFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Management Fee Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInManagementFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fees payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedInvestmentGainsLossesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Investment Gains (Losses) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedInvestmentGainsLossesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Realized and unrealized gain (loss):</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EnergyOilAndGasMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Energy: oil and gas.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EnergyOilAndGasMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Energy Oil And Gas [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EnergyOilAndGasMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Energy: Oil &amp; Gas</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseDirectorsFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Director Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseDirectorsFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Board of directors' fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Secured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSecuredDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayment of repurchase obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturn_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Total Return</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturn_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total return based on NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revolving Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revolving Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash used in operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesSeriesBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series A Notes Series B Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesSeriesBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Notes Series B Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesSeriesBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series A Notes Series B Notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fee Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income based incentive fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss), Investment and Derivative, Operating, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net change in unrealized appreciation (depreciation)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RemainingUndrawnCapitalCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Remaining undrawn capital commitments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RemainingUndrawnCapitalCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Remaining Undrawn Capital Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RemainingUndrawnCapitalCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining undrawn capital commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date of Record</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Record Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PledgingPurposeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pledging Purpose [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Gain (Loss), Investment and Derivative, Operating, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gain (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross unrealized appreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Tax Basis, Unrealized Gain</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest and dividends receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest and dividends receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Interest and Dividends Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Interest and Dividends Receivable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net increase (decrease) for the period, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total increase (decrease) in net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MayEightTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">May 8, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MayEightTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">May Eight Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MayEightTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">May eight two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebtExcludingAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Debt, Excluding Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebtExcludingAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stated interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Debt Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred financing costs paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesSeriesCNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Notes Series C Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesSeriesCNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series A notes Series C notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesSeriesCNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series A Notes and Series C Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">NET ASSETS</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Changes in Fair Value of Financial Instruments for which Level 3 Inputs were used to Determine Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ServicesBusinessMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Services: business member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ServicesBusinessMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Services: Business [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ServicesBusinessMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Services: Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net distributable earnings (accumulated losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total accumulated earnings (losses) - net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributable earnings (accumulated losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributable earnings (accumulated losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfUnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Unsecured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfUnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt periodic payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquitySecuritiesIndustryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Industry Sector [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Preferred Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Well-known Seasoned Issuer</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FirstLienDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">First lien debt.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FirstLienDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">First Lien Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FirstLienDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">First Lien Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MeasurementInputMarketYieldDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Measurement input market yield discount rate member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MeasurementInputMarketYieldDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Market Yield Discount Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MeasurementInputMarketYieldDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Market Yield Discount Rates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentySevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Twenty Seven Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentySevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June twenty seven two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentySevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 27, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ManagementFeesDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Management fees description.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ManagementFeesDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Management Fees Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ManagementFeesDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fees, description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LoanRepurchaseObligationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Loan repurchase obligations.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LoanRepurchaseObligationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loan Repurchase Obligations [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LoanRepurchaseObligationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loan Repurchase Obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LoanRepurchaseObligationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Repurchase Obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FinancingCostsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Financing costs payable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FinancingCostsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Costs Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FinancingCostsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financing costs payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetReceiptOfSettlementOfDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net receipt of settlement of derivatives.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetReceiptOfSettlementOfDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Receipt of Settlement of Derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetReceiptOfSettlementOfDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net receipt of settlement of derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Undistributed ordinary income - net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distributable Earnings (Loss), Accumulated Ordinary Income (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtFairValueAsPercentageOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment owned at fair value as percentage of net assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtFairValueAsPercentageOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned at Fair Value as Percentage of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtFairValueAsPercentageOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value as % of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt and Equity Securities, Realized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gains (losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt and Equity Securities, Realized Gain (Loss), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by (used in) operating activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPricePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Redemption Price, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPricePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption price percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of industry composition of investments at fair value table text block.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Industry Composition of Investments at Fair Value [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Industry Composition of Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December twenty nine two thousand twenty two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Twenty Nine Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 29, 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskRoleOfManagementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Role of Management [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MayTwelveTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">May 12, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MayTwelveTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">May Twelve Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MayTwelveTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">May twelve two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Discount (Premium)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of discount on debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding repurchase obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Secured Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Loan repurchase obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Liabilities, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income tax liability or expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Deferred Tax Liabilities, Gross, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments, Owned, at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Fair value, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Portfolio Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Financial Instruments, Owned, at Fair Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MediaAdvertisingPrintingAndPublishingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Media: advertising, printing &amp; publishing.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MediaAdvertisingPrintingAndPublishingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Media Advertising Printing And Publishing [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MediaAdvertisingPrintingAndPublishingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Media: Advertising, Printing &amp; Publishing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Per share information - basic and diluted:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdministrativeFeesDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administrative Fees, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdministrativeFeesDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administrative fees, description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LineOfCreditFacilityAdministrativeAgentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit facility administrative agent fee percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LineOfCreditFacilityAdministrativeAgentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line Of Credit Facility Administrative Agent Fee Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LineOfCreditFacilityAdministrativeAgentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of administrative agent fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalUnitsNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Units, Net Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalUnitsNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalUnitsNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total capital commitments, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Carrying Amount, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, par value $0.001 (0 and 250 shares authorized and outstanding, respectively)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeCounterpartyGoldmanSachsInternationalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative counterparty, Goldman Sachs International.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeCounterpartyGoldmanSachsInternationalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Counterparty Goldman Sachs International [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeCounterpartyGoldmanSachsInternationalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goldman Sachs International</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplemental Cash Flow Information [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental disclosure of cash flow information and non-cash financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Foreign Currency Transactions and Translations Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign Currency Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total derivative asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total derivative asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Unrealized appreciation on forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Total derivative asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ValuationTechniqueRecentTransactionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Valuation technique, recent transaction member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ValuationTechniqueRecentTransactionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Technique, Recent Transaction [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ValuationTechniqueRecentTransactionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recent Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIssuerNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Issuer Name [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BeverageFoodAndTobaccoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Beverage, food and tobacco.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BeverageFoodAndTobaccoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Beverage Food And Tobacco [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BeverageFoodAndTobaccoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Beverage, Food &amp; Tobacco</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAmortizationOfPremiumAccretionOfDiscountNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value measurement with unobservable inputs reconciliation recurring basis amortization of premium/accretion of discount, net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAmortizationOfPremiumAccretionOfDiscountNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Amortization of Premium/Accretion of Discount, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAmortizationOfPremiumAccretionOfDiscountNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of premium/accretion of discount, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position Location, Balance [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ManagementFeeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Management Fee Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ManagementFeeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentIncomePaidInKindDividend_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Paid in Kind Dividend</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentIncomePaidInKindDividend_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment income, paid in kind dividend.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentIncomePaidInKindDividend_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Four Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September four two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 4, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Sale of Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Gain (Loss) on Sale of Investments, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net realized (gains) losses on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPeriodAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Redemption, Period [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IndependentPricingServiceOrDirectlyFromIndependentBrokerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Independent pricing service, or directly from independent broker member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IndependentPricingServiceOrDirectlyFromIndependentBrokerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Independent Pricing Service, or Directly from Independent Broker [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IndependentPricingServiceOrDirectlyFromIndependentBrokerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Independent Pricing Service, or Directly from Independent Broker</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPayableForInvestmentPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Payable for Investment Purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPayableForInvestmentPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payable for investments purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net increase (decrease) for the period, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Period Increase (Decrease)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of information about company's unfunded commitments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unfunded Commitments [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Unfunded Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Investment Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Debt and Equity Securities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrimeRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prime Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrimeRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prime Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossRealized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Gain (Loss), Foreign Currency Transaction, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossRealized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign currency transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyUnrealizedAppreciationDepreciationPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Per share or unit amount of Unrealized appreciation (depreciation) on investment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyUnrealizedAppreciationDepreciationPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company Unrealized Appreciation Depreciation Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyUnrealizedAppreciationDepreciationPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized appreciation (depreciation)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Approach and Technique [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net increase in cash, cash equivalents, and restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseTransferAgentAndCustodianFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transfer Agent and Custodian Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseTransferAgentAndCustodianFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transfer agency fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Unrealized Gain (Loss) on Investment, Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized appreciation (depreciation)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentReinvestmentPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Reinvestment Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentReinvestmentPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Date when the reinvestement period for the debt instrument ends, in YYYY-MM-DD format.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentReinvestmentPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Extended reinvestment period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CH_lbl" xlink:role="http://www.xbrl.org/2003/role/label">SWITZERLAND</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CH_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SWITZERLAND</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstandng Principal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Long-Term Debt, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LIABILITIES</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdministrativeFeesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administrative Fees Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdministrativeFeesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administration expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RegularDividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Regular dividends payable amount per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RegularDividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Regular Dividends Payable Amount Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RegularDividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Regular Distribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ParentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Parent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInCapitalGainsIncentiveFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease in Capital Gains Incentive Fee Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInCapitalGainsIncentiveFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease in capital gains incentive fee payable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInCapitalGainsIncentiveFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital gains incentive fee payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperatingPaidInCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Operating, Paid in Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperatingPaidInCash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Financial Statement Error Correction [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instruments [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoThousandThirtyOneNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Thirty One Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoThousandThirtyOneNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two thousand thirty one notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoThousandThirtyOneNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2031 Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_InterestEarningAssetsAverageYield_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest-Earning Assets, Average Yield</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_InterestEarningAssetsAverageYield_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Average yield</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BlackScholesMertonModelMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Black-Scholes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BlackScholesMertonModelMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Technique, Black-Scholes-Merton Model [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FixedIncomeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fixed Income Interest Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FixedIncomeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notional amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CollateralManagementAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collateral Management Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CollateralManagementAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collateral Management Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CollateralManagementAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collateral management agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long-Term Debt Instruments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AugustElevenThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August Eleven Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AugustElevenThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August eleven thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AugustElevenThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 11, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativesReceivablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Company Receives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativesReceivablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivatives Receivable Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativesReceivablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivatives receivable percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RepurchaseAgreementsRemainingContractualMaturities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Repurchase agreements remaining contractual maturities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RepurchaseAgreementsRemainingContractualMaturities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repurchase agreements remaining contractual maturities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RepurchaseAgreementsRemainingContractualMaturities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining contractual maturities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNetAmortizationOfDiscountAndPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Net, Amortization of Discount and Premium</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNetAmortizationOfDiscountAndPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investment Income, Net, Amortization of Discount and Premium, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNetAmortizationOfDiscountAndPremium_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net accretion of discount and amortization of premium</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DistributionPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distribution Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DistributionPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss) Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net investment income to average net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccruedInterestAndDividendsReceivedInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued interest and dividends received in-kind.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccruedInterestAndDividendsReceivedInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Interest and Dividends Received in Kind</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccruedInterestAndDividendsReceivedInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued interest and dividends received in-kind</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unused portion</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Remaining Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClassBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class B Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClassBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class B Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClassBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class B notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series D notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series D Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series D Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TemporaryEquityShareIssuedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock percentage of share issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TemporaryEquityShareIssuedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity Share Issued Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TemporaryEquityShareIssuedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Temporary equity share issued percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedBalanceShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedBalanceShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Par Amount / Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentySevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Twenty Seven Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentySevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 27, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentySevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March twenty seven two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EnvironmentalIndustriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Environmental Industries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EnvironmentalIndustriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Environmental Industries [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EnvironmentalIndustriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Environmental industries.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLenderDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Lender [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accrued Interest Receivable, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and other expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Professional Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Professional fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRepaymentsOfSecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from (Repayments of) Secured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRepaymentsOfSecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from repurchase obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialSupportTypeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Support, Type [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Incentive Fee Payable, Income-Based</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income based incentive fee payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HotelGamingAndLeisureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Hotel, gaming and leisure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HotelGamingAndLeisureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hotel Gaming And Leisure [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HotelGamingAndLeisureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hotel, Gaming &amp; Leisure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnusedBorrowingCapacityFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Unused Borrowing Capacity, Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnusedBorrowingCapacityFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unused/undrawn fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRatePaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Interest Rate, Paid in Kind</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRatePaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">PIK</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwardsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Loss Carryforwards [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TaxReclassificationOfShareholdersEquityInAccordanceWithGenerallyAcceptedAccountingPrinciples_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Paid-in capital in excess of par value/ Net distributable earnings (accumulated losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TaxReclassificationOfShareholdersEquityInAccordanceWithGenerallyAcceptedAccountingPrinciples_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax reclassification of shareholder's equity in accordance with generally accepted accounting principles</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TaxReclassificationOfShareholdersEquityInAccordanceWithGenerallyAcceptedAccountingPrinciples_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tax Reclassification Of Shareholders Equity In Accordance With Generally Accepted Accounting Principles</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TaxReclassificationOfShareholdersEquityInAccordanceWithGenerallyAcceptedAccountingPrinciples_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tax reclassification of shareholders equity in accordance with generally accepted accounting principles.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AugustTwelveTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August Twelve Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AugustTwelveTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August 12, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AugustTwelveTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 12, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyCapitalShareTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Capital Share Transaction, Increase (Decrease) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyCapitalShareTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital Share Transactions:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount Purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Notional amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SPVIFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">SPV I facility.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SPVIFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">S P V I Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SPVIFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SPV I Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CashAndCashEquivalentsPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash And Cash Equivalents Percent Of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CashAndCashEquivalentsPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash and cash equivalents percent of net assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CashAndCashEquivalentsPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Cash and Cash Equivalents, Percentage of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss), Per Share, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net investment income (loss) per share, diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Liability, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized depreciation on forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Thirty Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">2030 notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2030 Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MetalsAndMiningMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Metals &amp; mining.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MetalsAndMiningMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Metals And Mining [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MetalsAndMiningMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Metals &amp; Mining</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentInterestRateTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment interest rate terms.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentInterestRateTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Interest Rate Terms</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentInterestRateTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Terms</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfValueOfNetAssetsToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of value of net assets to be considered annually for pre-incentive fee net investment income.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfValueOfNetAssetsToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Value Of Net Assets To Be Considered Annually For Pre-incentive Fee Net Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfValueOfNetAssetsToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of value of net assets to be considered annually for pre-incentive fee net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentyOneTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September twenty one two thousand twenty two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentyOneTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Twenty One Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentyOneTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 21, 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyOtherPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company Other Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyOtherPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment company other per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyOtherPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Extended maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Amounts of Recognized Derivative Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset, Subject to Master Netting Arrangement, before Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Derivatives before offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Tax Basis, Unrealized Gain (Loss) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwapTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swap Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwapTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest rate swap two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwapTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Swap Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyDividendDistributionFromDistributableEarningsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company Dividend Distribution From Distributable Earnings Losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyDividendDistributionFromDistributableEarningsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment Company Dividend Distribution From Distributable Earnings Losses.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyDividendDistributionFromDistributableEarningsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">From distributable earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Gain (Loss) on Investment, Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gain (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss) on Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net change in unrealized (appreciation) depreciation on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized appreciation (depreciation)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TransportationConsumerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transportation consumer.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TransportationConsumerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transportation Consumer [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TransportationConsumerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transportation: Consumer</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentCovenantComplianceMinimumAssetCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mminimum asset coverage ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentCovenantComplianceMinimumAssetCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt instrument, covenant compliance, minimum asset coverage ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentCovenantComplianceMinimumAssetCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt instrument, covenant compliance, minimum asset coverage ratio.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net position of Derivative Assets and Collateral Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DistributionsAsReturnOfCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distributions as Return of Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DistributionsAsReturnOfCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Distributions as return of capital.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DistributionsAsReturnOfCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions as return of capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Return of capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Tax Return of Capital Distribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Distributions from return of capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">From return of capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Return of capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TelecommunicationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Telecommunications member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TelecommunicationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Telecommunications [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TelecommunicationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Telecommunications</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and contingencies (Note 8)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfDesignatedDividendsPaidFromNetInvestmentTaxableIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of designated dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfDesignatedDividendsPaidFromNetInvestmentTaxableIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Designated Dividends Paid From Net Investment Taxable Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfDesignatedDividendsPaidFromNetInvestmentTaxableIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of designated dividends paid from net investment taxable income.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series B Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series B Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesBNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series B Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorFirmId_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Firm ID</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Basis Spread on Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis spread on variable rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Facility margin</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyTimingDifferences_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Timing differences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyTimingDifferences_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company Timing Differences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyTimingDifferences_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment company timing differences.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Forecast [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Scenario Forecast</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfInvestmentsOnFairValueBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of investments on fair value basis.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfInvestmentsOnFairValueBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of investments on fair value basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfInvestmentsOnFairValueBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of investments on fair value basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OpenForwardForeignCurrencyContractIdentifierAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Open Forward Foreign Currency Contract, Identifier [Axis]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfTaxableDistributionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of taxable distributions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDerivativeInstrumentsNetPretax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Derivative Instruments, Net, Pretax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDerivativeInstrumentsNetPretax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net realized and unrealized gains on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_AU_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AUSTRALIA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_AU_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">AUSTRALIA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net increase (decrease) in net assets resulting from shareholder distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net increase (decrease) in net assets resulting from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementPositionsOrCommitteesResponsibleTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Positions or Committees Responsible [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationalAndOfferingCostsExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offering and Organizational Costs, Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationalAndOfferingCostsExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Offering and Organizational Costs, Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationalAndOfferingCostsExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average shares outstanding, basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unfunded commitment fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unfunded Commitment Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentFairValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series A Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesANotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series A notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRateFloor_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Interest Rate, Floor</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRateFloor_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Floor</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedAppreciationDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized earnings (losses) - net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedAppreciationDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distributable Earnings (Loss), Accumulated Appreciation (Depreciation)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NumberOfInvestmentsTransferredFromLevel3ToLevel2_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of investments transferred from level 3 to level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NumberOfInvestmentsTransferredFromLevel3ToLevel2_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Investments Transferred from Level 3 to Level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NumberOfInvestmentsTransferredFromLevel3ToLevel2_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of investments transferred from level 3 to level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SovereignAndPublicFinanceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sovereign and Public Finance [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SovereignAndPublicFinanceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sovereign and public finance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SovereignAndPublicFinanceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sovereign &amp; Public Finance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskProcessForInformingManagementOrCommitteesResponsibleTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total debt, net of financing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total debt, net of financing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Carrying value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Agreements and Related Party Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NotePurchaseAgreementIIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Note Purchase Agreement II</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NotePurchaseAgreementIIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Note Purchase Agreement II [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NotePurchaseAgreementIIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Note purchase agreement II.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Stockholders' Equity Attributable to Parent, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Stockholders' Equity Attributable to Parent, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyAdministrationAgreementTerminationNoticePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment company administration agreement termination notice period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyAdministrationAgreementTerminationNoticePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company Administration Agreement Termination Notice Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyAdministrationAgreementTerminationNoticePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Termination notice period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income and Interest Expense Disclosure [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Components of Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis of Accounting, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Presentation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Foreign Currency Contracts, Liability, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Four Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March four two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 4, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyUndistributedEarnings_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total undistributed earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyUndistributedEarnings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company Undistributed Earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyUndistributedEarnings_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment company undistributed earnings.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset, Subject to Master Netting Arrangement, after Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Asset, Subject to Master Netting Arrangement, after Offset, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Amounts of Assets Presented in the Statement of Financial Position</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentyEightTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Twenty Eight Two Thousand Twenty Four Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentyEightTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March twenty eight two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentyEightTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 28, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Approach and Technique [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series A Preferred Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Use of Estimates, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Use of Estimates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Twenty Seven Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June twenty seven two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 27, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive management fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fee Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EquityAndOtherInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity And Other Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EquityAndOtherInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity and other investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_EquityAndOtherInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity and Other Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Date Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Investment Owned, at Fair Value, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Investment Owned, at Fair Value, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Non-controlled/non-affiliated investments, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UNITED STATES</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidIfRateOfReturnExceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Pre-incentive Fee Net Investment Income To Be Paid If Rate Of Return Exceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidIfRateOfReturnExceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of pre-incentive fee net investment income to be paid if rate of return exceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidIfRateOfReturnExceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of pre-incentive fee net investment income to be paid if rate of return exceeds.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net position of Derivative Liabilities and Pledged Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities and Other Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Operating and Nonoperating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SixPointTwoFiveZeroPercentageNotesDueTwoThousandAndThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Six Point Two Five Zero Percentage Notes Due Two Thousand And Thirty [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SixPointTwoFiveZeroPercentageNotesDueTwoThousandAndThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">6.250% notes due 2030.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SixPointTwoFiveZeroPercentageNotesDueTwoThousandAndThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">6.250% Notes Due 2030</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ManagementFeesTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Management fees two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ManagementFeesTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Management Fees Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ManagementFeesTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management Fee Second</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Investments [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of preferred shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturnAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Total Return [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturnAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental Data:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAverageOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Average debt outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAverageOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Average borrowings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAverageOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Aggregate face amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConstructionAndBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction And Building member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConstructionAndBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Construction and building.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConstructionAndBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Construction &amp; Building</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MacquarieBankLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Macquarie Bank Limited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MacquarieBankLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Macquarie Bank Limited.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MacquarieBankLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Macquarie Bank Limited [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SubscriptionFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Subscription facility.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SubscriptionFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SubscriptionFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subscription Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIssuerAffiliationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Issuer Affiliation [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfInterestRateSwapTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Interest Rate Swap [Table TextBlock]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfInterestRateSwapTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of interest rate swap.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfInterestRateSwapTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Interest Rate Swap</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtWeightedAverageInterestRateOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Weighted Average Interest Rate, over Time</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtWeightedAverageInterestRateOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of reporting segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdvisoryAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Advisory agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdvisoryAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advisory Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdvisoryAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Advisory Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SecuritiesAndExchangeCommissionDisclosureUpdateAndSimplificationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities and exchange commission disclosure update and simplification.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SecuritiesAndExchangeCommissionDisclosureUpdateAndSimplificationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities and Exchange Commission Disclosure Update and Simplification [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SecuritiesAndExchangeCommissionDisclosureUpdateAndSimplificationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities and Exchange Commission Disclosure Update and Simplification</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInUnrealizedAppreciationDepreciationOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change In Unrealized Appreciation Depreciation On Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInUnrealizedAppreciationDepreciationOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Change in unrealized appreciation depreciation on investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInUnrealizedAppreciationDepreciationOnInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net change in unrealized (appreciation) depreciation on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CounterpartyNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Counterparty Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeNotionalValueAtPeriodEnd_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative notional value at period end.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeNotionalValueAtPeriodEnd_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Notional Value at Period End</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeNotionalValueAtPeriodEnd_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notional Value at Period End</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccordionFeatureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accordion Feature [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccordionFeatureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accordion feature.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccordionFeatureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accordion Feature</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PledgingPurposeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pledging Purpose [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments at amortized cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital equipment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSales_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSales_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Proceeds from principal repayments and sales of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash, cash equivalents, and restricted cash, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash, cash equivalents, and restricted cash, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total cash, cash equivalents, and restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total cash, cash equivalents, and restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total Cash and Cash Equivalents, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfNetDecreaseInNetAssetsResultingFromOperationsToTotalTaxableIncomeAndGainsAvailableForDistributionTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Net Decrease in Net Assets Resulting From Operations to Total Taxable Income and Gains Available for Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfNetDecreaseInNetAssetsResultingFromOperationsToTotalTaxableIncomeAndGainsAvailableForDistributionTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Net Decrease In Net Assets Resulting From Operations To Total Taxable Income And Gains Available For Distribution [Table Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesCNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series C Notes [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConsumerGoodsDurableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consumer goods: durable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConsumerGoodsDurableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consumer Goods Durable [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollateralizedDebtObligationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Collateral Obligation</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TemporaryEquitySharesRedeemed_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity Shares Redeemed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TemporaryEquitySharesRedeemed_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Temporary equity shares redeemed.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TemporaryEquitySharesRedeemed_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares redeemed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Twenty Eight Two Thousand Twenty Three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September twenty eight two thousand twenty three.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 28, 2023</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesFNotesSeriesGNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series F Notes Series G Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PreferredEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Equity [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PreferredEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtSecuritizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2023 Debt Securitization</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtSecuritizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">2023 debt securitization.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_IE_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">IRELAND</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_IE_lbl" xlink:role="http://www.xbrl.org/2003/role/label">IRELAND</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BasisAdjustmentForCorporateConversion_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis adjustment for corporate conversion</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BasisAdjustmentForCorporateConversion_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Basis adjustment for corporate conversion.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JulyTenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">July Ten Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JulyTenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">July 10, 2024.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JulyTenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">July 10, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Subject to Master Netting Arrangement, after Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Liability, Subject to Master Netting Arrangement, after Offset, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Amounts of Liabilities Presented in the Statement of Financial Position</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MeasurementInputTransactionPriceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Measurement input transaction price member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MeasurementInputTransactionPriceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Transaction Price [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MeasurementInputTransactionPriceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeAssetNotionalAmountTransacted_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative asset notional amount transacted.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeAssetNotionalAmountTransacted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset Notional Amount Transacted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeAssetNotionalAmountTransacted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount Transacted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyContributedCapitalToCommittedCapitalRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Contributed Capital to Committed Capital Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyContributedCapitalToCommittedCapitalRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ratios of total contributed capital to total committed capital, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfHurdleRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of hurdle rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfHurdleRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Hurdle Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfHurdleRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of hurdle rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Dividends_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwapOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swap One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwapOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest rate swap one.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwapOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Swap One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Restricted Cash, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HealthcareAndPharmaceuticalsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Healthcare and Pharmaceuticals [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HealthcareAndPharmaceuticalsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Healthcare and pharmaceuticals.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignExchangeForwardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Foreign Exchange Forward [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignExchangeForwardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign Currency Forward Contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccretionOfOriginalIssueDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accretion of Original Issue Discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccretionOfOriginalIssueDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accretion of original issue discount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccretionOfOriginalIssueDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accretion of original issue discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SpvIiFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">SPV II Facility.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SpvIiFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">SPV II Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SpvIiFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SPV II Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromDerivativeInstrumentFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for (Proceeds from) Derivative Instrument, Financing Activities</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Act File Number</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Ordinary Dividends, Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClassANotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClassANotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class A Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClassANotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class A notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtFairValueAndCashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned At Fair Value And Cash And Cash Equivalents Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtFairValueAndCashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment owned at fair value and cash and cash equivalents fair value disclosure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtFairValueAndCashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Portfolio Investments, Cash and Cash Equivalents, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments, Gain (Loss) [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Net Realized and Unrealized Gains and Losses on Derivative Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross unrealized depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross unrealized depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Tax Basis, Unrealized Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_LU_lbl" xlink:role="http://www.xbrl.org/2003/role/label">LUXEMBOURG</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncomeTaxDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Disclosure [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncomeTaxDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income tax disclosure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Carrying Values and Estimated Fair Values of Debt Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyOneTwoThousandTwentyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December twenty one two thousand twenty one.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyOneTwoThousandTwentyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Twenty One Two Thousand Twenty One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyOneTwoThousandTwentyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 21, 2021</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Twenty Seven Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September 27, 2024.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 27, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwap_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swap</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwap_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest rate swap.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwap_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate swap</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubordinatedDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subordinated Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubordinatedDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subordinated Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Tax Basis, Taxable Income (Loss), before Deduction for Distribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total taxable / distributable income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxBasisTaxableIncomeLossBeforeDeductionForDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total taxable / distributable income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosures [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilSeventeenTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">April seventeen two thousand twenty three.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilSeventeenTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">April seventeen two thousand twenty three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilSeventeenTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">April 17, 2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SubordinatedManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subordinated management fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SubordinatedManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subordinated Management Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SubordinatedManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Subordinated management fee.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossUnrealized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss), Foreign Currency Transaction, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossUnrealized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign currency transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Operating Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of operating segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred share redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Repurchase of Preferred Stock and Preference Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Preferred share redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestmentMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alternative Investment, Measurement Input</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestmentMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Range</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeLiabilityNotionalValueAtSettlement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative liability notional value at settlement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeLiabilityNotionalValueAtSettlement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability Notional Value at Settlement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeLiabilityNotionalValueAtSettlement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notional Value at Settlement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross Amounts Offset in the Statement of Assets and Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministrationAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Administration agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministrationAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administration Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministrationAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administration Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BoardOfDirectorsFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Board of directors fee.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BoardOfDirectorsFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Board of Directors Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BoardOfDirectorsFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Board of directors' fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BoardOfDirectorsFee_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Board of directors' fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Twenty Eight Two Thousand Twenty Three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December twenty eight two thousand twenty three.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 28, 2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsCostForIncomeTaxPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsCostForIncomeTaxPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Tax Basis, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalGainDividendsPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital gain dividends paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalGainDividendsPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Gain Dividends Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalGainDividendsPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital gain dividends paid.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of preferred shares, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityFairValueGrossAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Subject to Master Netting Arrangement, Asset Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityFairValueGrossAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Amounts Offset in the Statement of Assets and Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationOnForeignCurrencyForwardContracts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net change in unrealized (appreciation) depreciation on foreign currency forward contracts.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationOnForeignCurrencyForwardContracts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Change in Unrealized Appreciation Depreciation on Foreign Currency Forward Contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationOnForeignCurrencyForwardContracts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net change in unrealized (appreciation) depreciation on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Investments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recent Accounting Pronouncements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment for Purchase, Investment, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchases of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDividendDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distributions paid or accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDividendDistribution_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions paid or accrued/Distributions to shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDividendDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total taxable / distributable income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDividendDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions to shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Assets and Liabilities by Counterparty, Net of Amounts Available for Offset Under Master Netting Agreement or Similar Arrangement, and Net of Related Collateral Received for Assets or Pledged for Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyPortfolioTurnover_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Portfolio Turnover</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyPortfolioTurnover_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Portfolio turnover rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares outstanding, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfGeographicCompositionOfInvestmentsAtCostAndFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of geographic composition of investments at cost and fair value table text block.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfGeographicCompositionOfInvestmentsAtCostAndFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Geographic Composition of Investments at Cost and Fair Value [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfGeographicCompositionOfInvestmentsAtCostAndFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Geographic Composition of Investments at Cost and Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ReinvestmentOfShareholderDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Reinvestment of shareholder distributions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ReinvestmentOfShareholderDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reinvestment of shareholder distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AutomotiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Automotive</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AutomotiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Automotive Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AutomotiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Automotive.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilFifteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">April Fifteen Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilFifteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">April fifteen two thousand twenty two,</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilFifteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">April 15, 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInvestmentInterestRateFloor_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt investment interest rate floor</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInvestmentInterestRateFloor_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Investment Interest Rate Floor</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_NoTradingSymbolFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">No Trading Symbol Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Investments [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChemicalsPlasticsAndRubberMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Chemicals, plastics and rubber.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChemicalsPlasticsAndRubberMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Chemicals Plastics And Rubber [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChemicalsPlasticsAndRubberMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Chemicals, Plastics &amp; Rubber</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net unrealized gains (losses) on derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net change in unrealized appreciation (depreciation) on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Change in Unreaized Gains / (Losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeCounterpartyMacquarieMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative counterparty macquarie.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeCounterpartyMacquarieMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Counterparty Macquarie [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeCounterpartyMacquarieMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Macquarie</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Twenty Nine Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December twenty nine two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 29, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Aggregate offering price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncrementalFinancingCostPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Incremental financing cost payable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncrementalFinancingCostPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incremental Financing cost Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncrementalFinancingCostPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incremental financing cost payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateSwapMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swap [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateSwapMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Swap</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayableCapitalGainBased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fee Payable, Capital-Gain-Based</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayableCapitalGainBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital gains incentive fee payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Operating, after Expense and Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investment Income, Operating, after Expense and Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net increase (decrease) in net assets resulting from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net increase (decrease) in net assets resulting from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Net increase in net assets resulting from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesBNotesSeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series B Notes Series D Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesBNotesSeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series B Notes and Series D Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesBNotesSeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series B notes series D notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministratorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Administrator.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministratorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administrator [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdministratorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administrator</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SpecialDividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Special dividends payable amount per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SpecialDividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Special Dividends Payable Amount Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SpecialDividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Special Distribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BorrowingBaseGreaterThanOrEqualTo16XCombinedDebtAmountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Borrowing base greater than or equal to 1.6x combined debt amount [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BorrowingBaseGreaterThanOrEqualTo16XCombinedDebtAmountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Borrowing base greater than or equal to 1.6x combined debt amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BorrowingBaseGreaterThanOrEqualTo16XCombinedDebtAmountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowing Base Greater than or equal to 1.6x Combined Debt Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentBasisSpreadVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Basis Spread, Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentBasisSpreadVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reference Rate and Spread</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PreferredEquityPositionInterestRatePaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred equity position, interest rate, paid in kind</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PreferredEquityPositionInterestRatePaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred equity position, interest rate, paid in kind.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PreferredEquityPositionInterestRatePaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">PIK</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransportationSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transportation Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransportationSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transportation: Cargo</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Gain (Loss), Investment and Derivative, Operating, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net realized gain (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativesFairValueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivatives, Fair Value [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASSETS</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends, Preferred Stock, Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Preferred Stock Dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Authority, Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses and other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Debt repayments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NumberOfInvestmentsTransferredFromLevel2ToLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of investments transferred from level 2 to level 3.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NumberOfInvestmentsTransferredFromLevel2ToLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of investments transferred from level 2 to level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NumberOfInvestmentsTransferredFromLevel2ToLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of investments transferred from level 2 to level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionLongTermCapitalGain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionLongTermCapitalGain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distribution, Long-Term Capital Gain</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberSeventeenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">October Seventeen Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberSeventeenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">October seventeen two thousand twenty two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberSeventeenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">October 17, 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfGrossAssetsMaximumToBeConsideredOnReimbursementsToAdministrator_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of gross assets maximum to be considered on reimbursements to administrator.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfGrossAssetsMaximumToBeConsideredOnReimbursementsToAdministrator_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Gross Assets Maximum To Be Considered On Reimbursements To Administrator</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfGrossAssetsMaximumToBeConsideredOnReimbursementsToAdministrator_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of gross assets maximum to be considered on reimbursements to administrator</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Preferred dividends paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Ordinary Dividends, Preferred Stock and Preference Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeMaturityDates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LIBORMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">LIBOR.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LIBORMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">L I B O R [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LIBORMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LIBOR</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalGainsIncentiveFeePercentPayableAnnually_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital gains incentive fee percent payable annually</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfComponentsOfAccumulatedEarningsLossesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of components of accumulated earnings (losses).</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net investment income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Distributions declared from net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions declared per common share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions declared from distributable earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distribution to common stockholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesGNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series G Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesGNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series G notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesGNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series G Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net increase (decrease) in net assets resulting from operations applicable to common shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Net Assets, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">% of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDueToAffiliates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Due to Affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDueToAffiliates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Examination, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income tax examination description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Line of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-Term Line of Credit, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Outstanding principal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock offering price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Stock Issued During Period, Value, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PortfolioInvestmentsAndCashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Portfolio investments and cash and cash equivalents fair value disclosure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PortfolioInvestmentsAndCashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Portfolio Investments and Cash and Cash Equivalents Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PortfolioInvestmentsAndCashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Portfolio Investments, Cash and Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivatives, Policy [Policy Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Operating Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase (decrease) in operating liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityLiquidationPreferencePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock liquidation value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityLiquidationPreferencePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Liquidation Preference Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HighTechIndustriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">High tech industries.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HighTechIndustriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">High Tech Industries [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HighTechIndustriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">High Tech Industries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayableInvestmentPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payable for investments purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayableInvestmentPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payable, Investment, Purchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OpenSwapContractIdentifierAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Open Swap Contract, Identifier [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilTwentyOneTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">April twenty one two thousand twenty three.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilTwentyOneTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">April twenty one two thousand twenty three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AprilTwentyOneTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">April 21, 2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transfers out of Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Money Market Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Money Market Fund</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInSubscriptionReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in subscription receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInSubscriptionReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Change in subscription receivable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Taxable/Distributable Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccruedExpensesAndOtherLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Expenses and Other Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccruedExpensesAndOtherLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued expenses and other liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AccruedExpensesAndOtherLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued Expenses and Other Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfValueOfNetAssetsToBeConsideredQuarterlyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of value of netassets to be considered quarterly for pre-incentive fee net investment income.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfValueOfNetAssetsToBeConsideredQuarterlyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Value Of Net Assets To Be Considered Quarterly For Pre Incentive Fee Net Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfValueOfNetAssetsToBeConsideredQuarterlyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of value of net assets to be considered quarterly for pre-incentive fee net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Twenty Seven Two Thousand Twenty Four Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March twenty seven two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 27, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distribution [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPeriodDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Redemption, Period [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OtherBookTaxDifferences_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other book-tax differences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OtherBookTaxDifferences_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Book Tax Differences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OtherBookTaxDifferences_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other book tax differences.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesCNotesSeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series C Notes Series D Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesCNotesSeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series C Notes Series D Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesCNotesSeriesDNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series C notes series D notes.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring and Nonrecurring [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SixPointOneTwoFivePercentageNotesDueTwoThousandAndThirtyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Six Point One Two Five Percentage Notes Due Two Thousand And Thirty One Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SixPointOneTwoFivePercentageNotesDueTwoThousandAndThirtyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Six point one two five percentage notes due two thousand and thirty one.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SixPointOneTwoFivePercentageNotesDueTwoThousandAndThirtyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">6.125% notes due 2031</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Paid-in-Capital in Excess of Par Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_GB_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UNITED KINGDOM</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March eight two thousand twenty three.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Eight Two Thousand Twenty Three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 8, 2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt and Equity Securities, Unrealized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized appreciation (depreciation)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt and Equity Securities, Unrealized Gain (Loss), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfReclassificationsOfPermanentBookToTaxBasisDifferencesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Reclassifications of Permanent Book to Tax Basis Differences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfReclassificationsOfPermanentBookToTaxBasisDifferencesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Reclassifications Of Permanent Book To Tax Basis Differences [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ScheduleOfReclassificationsOfPermanentBookToTaxBasisDifferencesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of reclassifications of permanent book to tax basis differences.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PrincipalReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Principal receivable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PrincipalReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Principal Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PrincipalReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LineOfCreditCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit carrying value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LineOfCreditCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LineOfCreditCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Carrying value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flow from financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ValuationTechniqueMarketYieldAnalysisMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Valuation technique, market yield analysis member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ValuationTechniqueMarketYieldAnalysisMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Technique, Market Yield Analysis [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ValuationTechniqueMarketYieldAnalysisMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Market Yield Analysis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Ex Transition Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedPercentOfInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment Owned, Percent of Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedPercentOfInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Percent of Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedPercentOfInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">% of Total Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedPercentOfInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Percentage of investments at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NovemberSevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">November Seven Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NovemberSevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">November seven two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NovemberSevenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">November 7, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationOnNonControlledNonAffiliatedInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net change in unrealized appreciation (depreciation) on non-controlled/non-affiliated investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationOnNonControlledNonAffiliatedInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Change in Unrealized Appreciation (Depreciation) on Non-Controlled/Non-Affiliated Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationOnNonControlledNonAffiliatedInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized appreciation (depreciation) on non-controlled/non-affiliated company investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnearnedPerformanceBasedIncentiveFeeOnUnrealizedGains_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unearned performance-based incentive fee on unrealized gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnearnedPerformanceBasedIncentiveFeeOnUnrealizedGains_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unearned Performance Based Incentive Fee On Unrealized Gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnearnedPerformanceBasedIncentiveFeeOnUnrealizedGains_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unearned performance based incentive fee on unrealized gains.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberThirtyTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Thirty Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberThirtyTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December thirty two thousand twenty two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberThirtyTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 30, 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfNonQualifyingAssetsToTotalAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of non qualifying assets to total asset.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfNonQualifyingAssetsToTotalAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Non Qualifying Assets To Total Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfNonQualifyingAssetsToTotalAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of non-qualifying assets to total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Twenty Seven Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December twenty seven two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentySevenTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 27, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendIncomeOperatingPaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividend Income, Operating, Paid in Kind</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendIncomeOperatingPaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment-in-kind dividend income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Highlights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentAnnualReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Annual Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CreditSpreadAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Credit spread adjustment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CreditSpreadAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Spread Adjustment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CreditSpreadAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Spread Adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JulyFifteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">July Fifteen Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JulyFifteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">July fifteen two thousand twenty two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JulyFifteenTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">July 15, 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeInterestEarningAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Interest-Earning Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeInterestEarningAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest earning income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeInterestEarningAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Income, Interest-Earning Asset, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss), Per Share, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net investment income (loss) per share, basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Fair Value, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net position of Derivative Assets, Liabilities and Pledged Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fair Market Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest rate swaps, derivates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingActivityByTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Activity, by Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIssuanceOfSharesPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Share Issuance, Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIssuanceOfSharesPerShare_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Issuance of shares in connection with our DRP program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NovemberFourTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">November Four Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NovemberFourTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">November four two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NovemberFourTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">November 4, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfFinancingReceivableTypeOfBorrowerAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Type of Borrower [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Net [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment income, From non-controlled/non-affiliated investments:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendPayableDateToBePaidDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date to be Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendPayableDateToBePaidDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net unrealized investment appreciation (depreciation) on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Tax Basis, Unrealized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized appreciation (depreciation) on investments, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyIssuanceOfSharesInConnectionWithDRPProgram_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Issuance of shares in connection with DRP program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyIssuanceOfSharesInConnectionWithDRPProgram_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment company, issuance of shares in connection with DRP program.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyIssuanceOfSharesInConnectionWithDRPProgram_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Issuance of shares in connection with our DRP program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfDesignatedDistributionsFromNetInvestmentIncomeInterestRelatedDividends_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of designated distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfDesignatedDistributionsFromNetInvestmentIncomeInterestRelatedDividends_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Designated Distributions From Net Investment Income Interest Related Dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfDesignatedDistributionsFromNetInvestmentIncomeInterestRelatedDividends_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of designated distributions from net investment income interest related dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableUponCatchUpThreshold_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of pre-incentive fee net investment income payable upon catch up threshold.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableUponCatchUpThreshold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Pre-incentive Fee Net Investment Income Payable Upon Catch Up Threshold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableUponCatchUpThreshold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of pre-incentive fee net investment income payable upon catch up threshold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetailSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retail Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetailSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retail</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtCostAndCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Portfolio Investments, Cash and Cash Equivalents, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtCostAndCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned At Cost And Cash And Cash Equivalents At Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAtCostAndCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment owned at cost and cash and cash equivalents at carrying value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, par value $0.001 (200,000,000 shares authorized, 138,244,276 and 100,611,506 shares issued and outstanding, respectively)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFixedInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Fixed Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFixedInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed rate interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableIncomeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Income Interest Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableIncomeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Floating Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Expiration Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberThirtyOneTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">October 31, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberThirtyOneTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">October Thirty One Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberThirtyOneTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">October thirty one two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidation, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Consolidation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance, Net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance, Net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HealthcareSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Healthcare &amp; Pharmaceuticals</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HealthcareSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Healthcare Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Twenty Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December twenty two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 20, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net realized gains (losses) on derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net realized gains (losses) on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfDerivatives_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net realized (gains) losses on derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MediaDiversifiedAndProductionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Media: Diversified &amp; Production</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MediaDiversifiedAndProductionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Media: diversified and production.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MediaDiversifiedAndProductionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Media: Diversified And Production [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendAndInterestReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest and dividends receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendAndInterestReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividend and Interest Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialRatiosAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Ratios [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialRatiosAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ratios:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of deferred financing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase of investments (including PIK)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwapThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest Rate Swap.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InterestRateSwapThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swap Three</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityPublicFloat_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Public Float</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalPreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Paid-in capital in excess of par value of Preferred Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalPreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital, Preferred Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lender Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Expense Ratio, after Fee Waiver and Incentive Fee Deduction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseRatioIncludingIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expenses to average net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDividendsPayableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Dividends Payable [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDividendsPayableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Distributions Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PostOctoberLossDeferral_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Post October loss deferral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PostOctoberLossDeferral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Post October Loss Deferral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PostOctoberLossDeferral_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Post october loss deferral.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrecognized tax benefits income tax penalties and interest accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CommonStockSharesClassified_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Shares Classified</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CommonStockSharesClassified_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock shares classified.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CommonStockSharesClassified_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock shares classified</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityVoluntaryFilers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Voluntary Filers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementPositionsOrCommitteesResponsibleFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Positions or Committees Responsible [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAffiliatedIssuerControlledMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Affiliated Issuer, Controlled [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAffiliatedIssuerControlledMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Controlled</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SOFR</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfInvestmentsOnAnAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of investments on an amortized cost basis.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfInvestmentsOnAnAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of investments on an amortized cost basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfInvestmentsOnAnAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of investments on an amortized cost basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeVariableInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Variable Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeVariableInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable rate interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdviserMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adviser</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdviserMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adviser.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AdviserMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adviser [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OrganizationExpensesAndOfferingExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Organization expenses and offering expenses.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OrganizationExpensesAndOfferingExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization Expenses and Offering Expenses [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OrganizationExpensesAndOfferingExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization Expenses and Offering Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncomeTaxDisclosurTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Disclosur [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncomeTaxDisclosurTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income tax disclosure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Aggregate Offering Proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Quantitative Information about Significant Unobservable Inputs of Level 3 financial instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchSixTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Six Two Thousand Twenty Four Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchSixTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March six two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MarchSixTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 6, 2024</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DeferredFinancingCostsAndDebtIssuanceCostsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Financing Costs and Debt Issuance Costs [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DeferredFinancingCostsAndDebtIssuanceCostsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Financing Costs and Debt Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyRatioOfContributedCapitalToCommittedCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment company ratio of contributed capital to committed capital.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyRatioOfContributedCapitalToCommittedCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company Ratio of Contributed Capital to Committed Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentCompanyRatioOfContributedCapitalToCommittedCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ratios of total contributed capital to total committed capital, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net increase (decrease) for the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders' Equity, Period Increase (Decrease)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Stockholders' Equity, Period Increase (Decrease), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentExpirationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unfunded commitment expiration date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentExpirationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unfunded Commitment Expiration Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentExpirationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitment Expiration Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfFinancingReceivableTypeOfBorrowerDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Financing Receivable, Type of Borrower [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net asset value per common share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">NAV Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Net assets, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Net assets, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberTwentyFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">October Twenty Four Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberTwentyFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">October twenty four two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_OctoberTwentyFourTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">October 24, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AerospaceAndDefenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Aerospace and defense.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AerospaceAndDefenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aerospace And Defense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AerospaceAndDefenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aerospace &amp; Defense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital loss carryforward</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distributable Earnings (Loss), Accumulated Capital Loss Carryforward</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Fair Value of Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collateral Pledged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalGainsIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital gains incentive fee.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalGainsIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Gains Incentive Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalGainsIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital gains incentive fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPeriodOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reinvestment Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPeriodOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Redemption, Period One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_WeightedAverageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_WeightedAverageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConsumerGoodsNonDurableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consumer Goods Non-durable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConsumerGoodsNonDurableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consumer Goods Non-durable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConsumerGoodsNonDurableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consumer Goods: Non-Durable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common shares, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesFNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series F Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesFNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series F Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeriesFNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series F notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentCovenantComplianceMinimumConsolidatedNetWorth_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum consolidated net worth</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentCovenantComplianceMinimumConsolidatedNetWorth_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt instrument, covenant compliance, minimum consolidated net worth</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DebtInstrumentCovenantComplianceMinimumConsolidatedNetWorth_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt instrument, covenant compliance, minimum consolidated net worth</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Earnings per common share, diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per share, diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Month Secured Overnight Financing Rate Sofr Overnight Index Swap Rate Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two month secured overnight financing rate (SOFR) overnight index swap rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TwoMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2030 Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInPrincipalReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Principal receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInPrincipalReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease in principal receivable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInPrincipalReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Principal Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BaseManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Base management fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BaseManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Base Management Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BaseManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Base management fee.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingActivityByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Activity [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Lines of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt borrowings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Lines of Credit, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt securitization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Face Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Aggregate principal amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneFiveTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Five Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneFiveTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June five two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneFiveTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 5, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate principal committed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Maximum commitment amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Counterparty Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidBasedOnHurdleRateAndValuesOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of pre-incentive fee net investment income to be paid based on hurdle rate and values of net assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidBasedOnHurdleRateAndValuesOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Pre-Incentive Fee Net Investment Income To Be Paid Based On Hurdle Rate And Values Of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidBasedOnHurdleRateAndValuesOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of pre-incentive fee net investment income to be paid based on hurdle rate and values of net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistributionPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Tax Return of Capital Distribution, Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistributionPerShare_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions from return of capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsRollForward_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Roll Forward]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentySixTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 26, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentySixTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Twenty Six Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SeptemberTwentySixTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September twenty six two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Subject to Master Netting Arrangement, before Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Amounts of Recognized Derivative Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeLiability_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross Amounts of Recognized Derivative Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberSixteenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 16, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberSixteenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Sixteen Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberSixteenTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December sixteen two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 29, 2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Twenty Nine Two Thousand Twenty Three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DecemberTwentyNineTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December twenty nine two thousand twenty three.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unfunded Commitment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Distributable Earnings (Accumulated Losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated Earnings (Loss), Net of Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of management fee.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Management Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfManagementFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of management fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SecondLienDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Second lien debt.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SecondLienDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Second Lien Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SecondLienDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Second Lien Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Price Volatility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Volatility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAndCashAndCashEquivalentsPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned And Cash And Cash Equivalents Percent Of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAndCashAndCashEquivalentsPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment owned and cash and cash equivalents percent of net assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InvestmentOwnedAndCashAndCashEquivalentsPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Portfolio Investments, Cash and Cash Equivalents, Percentage of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by (used in) financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedLongTermCapitalGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Undistributed long-term capital gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedLongTermCapitalGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distributable Earnings (Loss), Accumulated Long-Term Capital Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Notes Payable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorLocation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ManagementFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Management Fee Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ManagementFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fees payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments measured at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investments, Fair Value Disclosure, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfTotalBorrowingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of total borrowing costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfTotalBorrowingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Total Borrowing Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfTotalBorrowingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total borrowing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfTotalBorrowingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total borrowing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alternative Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Contract [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToReportingEntityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToReportingEntityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operations:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flow from operating activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distribution to Shareholders [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholder distributions:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Dividends, Per Share, Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions declared per common share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentyThreeTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June twenty three two thousand twenty two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentyThreeTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Twenty Three Two Thousand Twenty Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentyThreeTwoThousandTwentyTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 23, 2022</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInAccruedProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease in accrued professional fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInAccruedProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease in Accrued Professional Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_IncreaseDecreaseInAccruedProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued professional fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetRealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value measurement with unobservable inputs reconciliation recurring basis net realized gain (loss) on investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetRealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Net Realized Gain (Loss) on Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetRealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gain (loss) on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repurchase term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OpenForwardForeignCurrencyContractTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Open Forward Foreign Currency Contract [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OpenForwardForeignCurrencyContractTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Open Foreign Currency Forward Contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Authority, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Balance Sheet Impact of Fair Valuing the Interest Rate Swaps</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossInvestmentIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gross Investment Income, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossInvestmentIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeNetPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative, net periodic payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeNetPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Net Periodic Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DerivativeNetPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative net periodic payment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorOpinionTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Opinion [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInFairValueHedgingInstruments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Fair Value, Hedging Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInFairValueHedgingInstruments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Change in fair value of all derivative instruments designated as fair value hedging instruments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ChangeInFairValueHedgingInstruments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value of hedges</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustodyFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Custody Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustodyFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Custody expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June twenty eight two thousand twenty three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June twenty eight two thousand twenty three.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_JuneTwentyEightTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 28, 2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ProceedsFromIssuanceOfCommonSharesNetOfChangeInSubcriptionsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from issuance of common shares (net of change in subcriptions receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ProceedsFromIssuanceOfCommonSharesNetOfChangeInSubcriptionsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from issuance of common shares (net of change in subcriptions receivable).</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ProceedsFromIssuanceOfCommonSharesNetOfChangeInSubcriptionsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of common shares (net of change in subscriptions receivable)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Policies [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unfunded commitment balances.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unfunded Commitment Balances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_UnfundedCommitmentBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unfunded Commitment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Dividend Reinvestment Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">DRP Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Shares issued from reinvestment of distributions, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperatingPaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Operating, Paid in Kind</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperatingPaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment-in-kind interest income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfRateOfReturnToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of rate of return to be considered annually for pre-incentive fee net investment income.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfRateOfReturnToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Rate Of Return To Be Considered Annually For Pre Incentive Fee Net Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PercentageOfRateOfReturnToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of rate of return to be considered annually for pre-incentive fee net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Change in Unrealized Appreciation Depreciation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net change in unrealized appreciation depreciation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized appreciation (depreciation):</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AffiliatedEntityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Affiliated Entity [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AffiliatedEntityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Affiliated Entity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockByClassTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock, Class of Stock [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TICBidcoLTDMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">TIC Bidco LTD [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ALFFinanceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">ALF Finance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HealthcoInvestmentLTDMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Healthco Investment LTD.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConfluentHoldingsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Confluent Holdings LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CarevetLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Carevet LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LegendsHospitalityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Legends Hospitality.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SandlotBaseballBorrowerCoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sandlot Baseball Borrower Co.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_GreatDayImprovementsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Great Day Improvements LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NeptunePlatformBuyerLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Neptune Platform Buyer LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SkyMergerSubLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sky Merger Sub, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FaradayBuyerLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Faraday Buyer, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SolviasAGMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Solvias AG [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FaradayBuyerLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Faraday Buyer, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ALFFinanceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ALF Finance [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RevolverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revolver.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SolviasAGMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Solvias AG.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClubcorpHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Clubcorp Holdings Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_MaxarTechnologiesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maxar Technologies Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LigadoNetworksLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Ligado Networks LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TICBidcoLTDMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">TIC Bidco LTD.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AzuriteIntermediateHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Azurite Intermediate Holdings, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PetVetCareCentersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">PetVet Care Centers [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FEGIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">FEG, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_StCroixMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">St Croix [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SurveyMonkeyGlobalIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">SurveyMonkey Global Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FullsteamMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fullsteam [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InframarkMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inframark [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_USADebuskLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">USA Debusk LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HighgateHotelsLPMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Highgate Hotels, L.P. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_HealthcoInvestmentLTDMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Healthco Investment LTD [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SAFEManagementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">S.A.F.E. Management.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SurveyMonkeyGlobalIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">SurveyMonkey Global Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BrownAndRootMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Brown &amp; Root.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_K1SpeedIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">K1 Speed Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TrilliumFlowControlMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Trillium FlowControl.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ClubcorpHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Clubcorp Holdings Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ParfumsHoldingCoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Parfums Holding Co Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_AmerSpiritFLLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AmerSpirit FL LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LearnosityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Learnosity.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BoassoGlobalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Boasso Global.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FourWindsInteractiveLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Four Winds Interactive LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LigadoNetworksLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ligado Networks LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TrilliumFlowControlMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trillium FlowControl [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SwissAverageRateOvernightMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Swiss Average Rate Overnight [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RevolverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revolver [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DisaHoldingsCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disa Holdings Corp.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_StCroixMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">St. Croix.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SwissAverageRateOvernightMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Swiss Average Rate Overnight.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_ConfluentHoldingsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Confluent Holdings LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CarevetLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Carevet LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FrontgradeTechnologiesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Frontgrade Technologies Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalCommitmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Commitment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PharmalogicHoldingsCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pharmalogic Holdings Corp [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DFSHoldingCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">DFS Holding Company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_RPXCorporationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">RPX Corporation [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SevenRidgeInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Seven Ridge Investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_DelayedDrawMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Delayed Draw [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_NaturalPartnersIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Natural Partners, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SystemsPlanningAndAnalysisIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Systems Planning and Analysis, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_K1SpeedIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">K1 Speed Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CadoganTateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cadogan Tate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_InspiredPetNutritionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Inspired Pet Nutrition.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_PetVetCareCentersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">PetVet Care Centers.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_TownsendMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Townsend.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FEGIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">FEG, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_SterlingOvernightIndexAverageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sterling Overnight Index Average.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_LegendsHospitalityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legends Hospitality [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CoreWeaveComputeAcquisitionCoIVLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CoreWeave Compute Acquisition Co., IV, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BestTrashLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Best Trash LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_FullsteamMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fullsteam.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_CapitalCommitmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital commitment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_GreatDayImprovementsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Great Day Improvements LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001849894_BankBillSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Bill Swap Rate [Member]</link:label>
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  <xsd:element id="ck0001849894_NovemberSevenTwoThousandTwentyFiveMember" name="NovemberSevenTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SubscriptionAgreementsMember" name="SubscriptionAgreementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ValuationTechniqueMarketYieldAnalysisMember" name="ValuationTechniqueMarketYieldAnalysisMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyUnrealizedAppreciationDepreciationPerShare" name="InvestmentCompanyUnrealizedAppreciationDepreciationPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SummaryOfTotalSharesIssuedAndProceedsReceivedRelatedToCapitalDrawdownsDeliveredTableTextBlock" name="SummaryOfTotalSharesIssuedAndProceedsReceivedRelatedToCapitalDrawdownsDeliveredTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_IncreaseDecreaseInAccruedProfessionalFees" name="IncreaseDecreaseInAccruedProfessionalFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidIfRateOfReturnExceeds" name="PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidIfRateOfReturnExceeds" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_AprilTwentyOneTwoThousandTwentyThreeMember" name="AprilTwentyOneTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SAFEManagementMember" name="SAFEManagementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_TransportationConsumerMember" name="TransportationConsumerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ChangeInSubscriptionReceivable" name="ChangeInSubscriptionReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_MarchFourTwoThousandTwentyFiveMember" name="MarchFourTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_CapitalCommitmentMember" name="CapitalCommitmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentOwnedPercentOfInvestmentsAtFairValue" name="InvestmentOwnedPercentOfInvestmentsAtFairValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_LineOfCreditFacilityAdministrativeAgentFeePercentage" name="LineOfCreditFacilityAdministrativeAgentFeePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_IncomeTaxDisclosurTable" name="IncomeTaxDisclosurTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_JulyFifteenTwoThousandTwentyTwoMember" name="JulyFifteenTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeptemberTwentySevenTwoThousandTwentyFourMember" name="SeptemberTwentySevenTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_BeverageFoodAndTobaccoMember" name="BeverageFoodAndTobaccoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_BankBillSwapRateMember" name="BankBillSwapRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_CumulativeNonVotingPreferredStockDesignatedPercenatge" name="CumulativeNonVotingPreferredStockDesignatedPercenatge" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_AmerSpiritFLLLCMember" name="AmerSpiritFLLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DerivativeNotionalValueAtPeriodEnd" name="DerivativeNotionalValueAtPeriodEnd" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_SwissAverageRateOvernightMember" name="SwissAverageRateOvernightMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DistributionsAsReturnOfCapital" name="DistributionsAsReturnOfCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_PreferredEquityPositionInterestRatePaidInKind" name="PreferredEquityPositionInterestRatePaidInKind" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_TwoMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" name="TwoMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ClassANotesMember" name="ClassANotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AutomotiveMember" name="AutomotiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_FinancingCostsPayable" name="FinancingCostsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_AVSCHoldingCorporationMember" name="AVSCHoldingCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ScheduleOfGeographicCompositionOfInvestmentsAtCostAndFairValueTableTextBlock" name="ScheduleOfGeographicCompositionOfInvestmentsAtCostAndFairValueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_InvestmentOwnedAndCashAndCashEquivalentsPercentOfNetAssets" name="InvestmentOwnedAndCashAndCashEquivalentsPercentOfNetAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_NumberOfInvestmentsTransferredFromLevel3ToLevel2" name="NumberOfInvestmentsTransferredFromLevel3ToLevel2" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SubordinatedManagementFee" name="SubordinatedManagementFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_BorrowingBaseGreaterThanOrEqualTo16XCombinedDebtAmountMember" name="BorrowingBaseGreaterThanOrEqualTo16XCombinedDebtAmountMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AprilFifteenTwoThousandTwentyTwoMember" name="AprilFifteenTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfDesignatedDistributionsFromNetInvestmentIncomeInterestRelatedDividends" name="PercentageOfDesignatedDistributionsFromNetInvestmentIncomeInterestRelatedDividends" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_ServicesBusinessMember" name="ServicesBusinessMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_BestTrashLLCMember" name="BestTrashLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PharmalogicHoldingsCorpMember" name="PharmalogicHoldingsCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AccretionOfOriginalIssueDiscount" name="AccretionOfOriginalIssueDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_PercentageOfHurdleRate" name="PercentageOfHurdleRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SolviasAGMember" name="SolviasAGMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfRateOfReturnToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome" name="PercentageOfRateOfReturnToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_ScheduleOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock" name="ScheduleOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_HealthcoInvestmentLTDMember" name="HealthcoInvestmentLTDMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_FullsteamMember" name="FullsteamMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfQualifyingAssetsToTotalAssets" name="PercentageOfQualifyingAssetsToTotalAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SeriesCNotesSeriesDNotesMember" name="SeriesCNotesSeriesDNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PreferredEquityMember" name="PreferredEquityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_CapitalGainsIncentiveFeePercentPayableAnnually" name="CapitalGainsIncentiveFeePercentPayableAnnually" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_ChangeInFairValueHedgingInstruments" name="ChangeInFairValueHedgingInstruments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_FrontgradeTechnologiesIncMember" name="FrontgradeTechnologiesIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeriesBNotesSeriesDNotesMember" name="SeriesBNotesSeriesDNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableUponCatchUpThreshold" name="PercentageOfPreIncentiveFeeNetInvestmentIncomePayableUponCatchUpThreshold" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SixPointTwoFiveZeroPercentageNotesDueTwoThousandAndThirtyMember" name="SixPointTwoFiveZeroPercentageNotesDueTwoThousandAndThirtyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_UnfundedCommitmentExpirationDate" name="UnfundedCommitmentExpirationDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DecemberTwentySevenTwoThousandTwentyFourMember" name="DecemberTwentySevenTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_NetReceiptOfSettlementOfDerivatives" name="NetReceiptOfSettlementOfDerivatives" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_CapitalGainDividendsPaid" name="CapitalGainDividendsPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_AdviserMember" name="AdviserMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DisaHoldingsCorpMember" name="DisaHoldingsCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_CollateralManagementAgreementMember" name="CollateralManagementAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InterestRateSwapOneMember" name="InterestRateSwapOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_JuneTwentyEightTwoThousandTwentyThreeMember" name="JuneTwentyEightTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyOtherPerShare" name="InvestmentCompanyOtherPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DecemberTwentyNineTwoThousandTwentyFiveMember" name="DecemberTwentyNineTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_TaxReclassificationOfShareholdersEquityInAccordanceWithGenerallyAcceptedAccountingPrinciples" name="TaxReclassificationOfShareholdersEquityInAccordanceWithGenerallyAcceptedAccountingPrinciples" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_OtherBookTaxDifferences" name="OtherBookTaxDifferences" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_AgrofreshMember" name="AgrofreshMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ScheduleOfInterestRateSwapTableTextBlock" name="ScheduleOfInterestRateSwapTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_ScheduleOfNetDecreaseInNetAssetsResultingFromOperationsToTotalTaxableIncomeAndGainsAvailableForDistributionTableTextBlock" name="ScheduleOfNetDecreaseInNetAssetsResultingFromOperationsToTotalTaxableIncomeAndGainsAvailableForDistributionTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DerivativeCounterpartyGoldmanSachsInternationalMember" name="DerivativeCounterpartyGoldmanSachsInternationalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfRateOfReturnToBeConsideredQuarterlyForPreIncentiveFeeNetInvestmentIncome" name="PercentageOfRateOfReturnToBeConsideredQuarterlyForPreIncentiveFeeNetInvestmentIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SpecialDividendsPayableAmountPerShare" name="SpecialDividendsPayableAmountPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_AugustEightTwoThousandTwentyThreeMember" name="AugustEightTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MetalsAndMiningMember" name="MetalsAndMiningMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ScheduleOfComponentsOfAccumulatedEarningsLossesTableTextBlock" name="ScheduleOfComponentsOfAccumulatedEarningsLossesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SeriesBNotesMember" name="SeriesBNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SevenRidgeInvestmentsMember" name="SevenRidgeInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DecemberTwentyNineTwoThousandTwentyThreeMember" name="DecemberTwentyNineTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ClubcorpHoldingsIncMember" name="ClubcorpHoldingsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ConsumerGoodsDurableMember" name="ConsumerGoodsDurableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_JuneTwentyThreeTwoThousandTwentyTwoMember" name="JuneTwentyThreeTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DelayedDrawMember" name="DelayedDrawMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DeferredFinancingCostsAndDebtIssuanceCostsPolicyTextBlock" name="DeferredFinancingCostsAndDebtIssuanceCostsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetChangeInUnrealizedAppreciationDepreciationOnInvestments" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetChangeInUnrealizedAppreciationDepreciationOnInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_ElessentCleanTechnologiesIncMember" name="ElessentCleanTechnologiesIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ThreeMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" name="ThreeMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeriesFNotesSeriesGNotesMember" name="SeriesFNotesSeriesGNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyIssuanceOfSharesInConnectionWithDRPProgram" name="InvestmentCompanyIssuanceOfSharesInConnectionWithDRPProgram" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_InvestmentOwnedAtFairValueAndCashAndCashEquivalentsFairValueDisclosure" name="InvestmentOwnedAtFairValueAndCashAndCashEquivalentsFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_DecemberTwentyNineTwoThousandTwentyTwoMember" name="DecemberTwentyNineTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DrpProgramMember" name="DrpProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeptemberFourTwoThousandTwentyFiveMember" name="SeptemberFourTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_HighTechIndustriesMember" name="HighTechIndustriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DerivativeNetPeriodicPayment" name="DerivativeNetPeriodicPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_CarevetLLCMember" name="CarevetLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DecemberThirtyTwoThousandTwentyTwoMember" name="DecemberThirtyTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MediaAdvertisingPrintingAndPublishingMember" name="MediaAdvertisingPrintingAndPublishingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyTimingDifferences" name="InvestmentCompanyTimingDifferences" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_AdministratorMember" name="AdministratorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_BorrowingsBaseLessThan16XCombinedDebtAmountMember" name="BorrowingsBaseLessThan16XCombinedDebtAmountMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MarchEightTwoThousandTwentyThreeMember" name="MarchEightTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DerivativesPayablePercentage" name="DerivativesPayablePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidBasedOnHurdleRateAndValuesOfNetAssets" name="PercentageOfPreIncentiveFeeNetInvestmentIncomeToBePaidBasedOnHurdleRateAndValuesOfNetAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_ALFFinanceMember" name="ALFFinanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_LineOfCreditCarryingValue" name="LineOfCreditCarryingValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_CreditSpreadAdjustmentMember" name="CreditSpreadAdjustmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AdvisoryAgreementMember" name="AdvisoryAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ProceedsFromIssuanceOfCommonSharesNetOfChangeInSubcriptionsReceivable" name="ProceedsFromIssuanceOfCommonSharesNetOfChangeInSubcriptionsReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_LIBORMember" name="LIBORMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeriesDNotesMember" name="SeriesDNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyRatioOfContributedCapitalToCommittedCapital" name="InvestmentCompanyRatioOfContributedCapitalToCommittedCapital" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_PrincipalReceivable" name="PrincipalReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_ScheduleOfTaxableDistributionsTableTextBlock" name="ScheduleOfTaxableDistributionsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DerivativeLiabilityNotionalValueAtSettlement" name="DerivativeLiabilityNotionalValueAtSettlement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_AdministrationAgreementMember" name="AdministrationAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyAssetCoverageRatio" name="InvestmentCompanyAssetCoverageRatio" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_ChemicalsPlasticsAndRubberMember" name="ChemicalsPlasticsAndRubberMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_JuneTwentySevenTwoThousandTwentyFiveMember" name="JuneTwentySevenTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_BoardOfDirectorsFee" name="BoardOfDirectorsFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_CapitalGainsIncentiveFee" name="CapitalGainsIncentiveFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_UnfundedCommitmentFairValue" name="UnfundedCommitmentFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_InvestmentCompanyPortfolioTurnoverRate" name="InvestmentCompanyPortfolioTurnoverRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_MayTwelveTwoThousandTwentyFiveMember" name="MayTwelveTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_IncomeTaxDisclosureLineItems" name="IncomeTaxDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfGrossAssetsMaximumToBeConsideredOnReimbursementsToAdministrator" name="PercentageOfGrossAssetsMaximumToBeConsideredOnReimbursementsToAdministrator" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_FourWindsInteractiveLLCMember" name="FourWindsInteractiveLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_NumberOfInvestmentsTransferredFromLevel2ToLevel3" name="NumberOfInvestmentsTransferredFromLevel2ToLevel3" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_StCroixMember" name="StCroixMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AmortizationOfFinancingCostsPercentage" name="AmortizationOfFinancingCostsPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_BloombergShortTermBankYieldIndexMember" name="BloombergShortTermBankYieldIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AccruedInterestAndDividendsReceivedInKind" name="AccruedInterestAndDividendsReceivedInKind" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_EnergyOilAndGasMember" name="EnergyOilAndGasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MaxarTechnologiesIncMember" name="MaxarTechnologiesIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_IncrementalFinancingCostPayable" name="IncrementalFinancingCostPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationAbstract" name="NetChangeInUnrealizedAppreciationDepreciationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MacquarieBankLimitedMember" name="MacquarieBankLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_NotePurchaseAgreementIIMember" name="NotePurchaseAgreementIIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ConstructionAndBuildingMember" name="ConstructionAndBuildingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_GreatDayImprovementsLLCMember" name="GreatDayImprovementsLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ValuationTechniqueRecentTransactionMember" name="ValuationTechniqueRecentTransactionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ConsumerGoodsNonDurableMember" name="ConsumerGoodsNonDurableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SandlotBaseballBorrowerCoMember" name="SandlotBaseballBorrowerCoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_BasisAdjustmentForCorporateConversion" name="BasisAdjustmentForCorporateConversion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_SpartanCollegeLLCMember" name="SpartanCollegeLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SubscriptionFacilityMember" name="SubscriptionFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_EnvironmentalIndustriesMember" name="EnvironmentalIndustriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyUndistributedEarnings" name="InvestmentCompanyUndistributedEarnings" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_PercentageOfManagementFee" name="PercentageOfManagementFee" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DecemberTwentyTwoThousandTwentyFourMember" name="DecemberTwentyTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_TownsendMember" name="TownsendMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_EquityAndOtherInvestmentsMember" name="EquityAndOtherInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_RPXCorporationMember" name="RPXCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ServicesConsumerMember" name="ServicesConsumerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MediaBroadcastingAndSubscriptionMember" name="MediaBroadcastingAndSubscriptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_HealthcareAndPharmaceuticalsMember" name="HealthcareAndPharmaceuticalsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_RemainingUndrawnCapitalCommitments" name="RemainingUndrawnCapitalCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_NaturalPartnersIncMember" name="NaturalPartnersIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ChangeInDistributionsPayable" name="ChangeInDistributionsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_ReinvestmentOfShareholderDistributions" name="ReinvestmentOfShareholderDistributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_DebtInstrumentReinvestmentPeriod" name="DebtInstrumentReinvestmentPeriod" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_PercentageOfNonQualifyingAssetsToTotalAsset" name="PercentageOfNonQualifyingAssetsToTotalAsset" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_JuneFiveTwoThousandTwentyFourMember" name="JuneFiveTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SPVIFacilityMember" name="SPVIFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentInterestRateTerms" name="InvestmentInterestRateTerms" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_PostOctoberLossDeferral" name="PostOctoberLossDeferral" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_HighgateHotelsLPMember" name="HighgateHotelsLPMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeriesGNotesMember" name="SeriesGNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_JulyTenTwoThousandTwentyFourMember" name="JulyTenTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfInvestmentsOnFairValueBasis" name="PercentageOfInvestmentsOnFairValueBasis" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SystemsPlanningAndAnalysisIncMember" name="SystemsPlanningAndAnalysisIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_OrganizationExpensesAndOfferingExpensesPolicyTextBlock" name="OrganizationExpensesAndOfferingExpensesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SeptemberTwentyEightTwoThousandTwentyThreeMember" name="SeptemberTwentyEightTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeptemberTwentyOneTwoThousandTwentyTwoMember" name="SeptemberTwentyOneTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_FaradayBuyerLLCMember" name="FaradayBuyerLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SterlingOvernightIndexAverageMember" name="SterlingOvernightIndexAverageMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ClassBNotesMember" name="ClassBNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InspiredPetNutritionMember" name="InspiredPetNutritionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_OctoberTwentyFourTwoThousandTwentyFiveMember" name="OctoberTwentyFourTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DebtInvestmentInterestRateFloor" name="DebtInvestmentInterestRateFloor" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_AprilSeventeenTwoThousandTwentyThreeMember" name="AprilSeventeenTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_CoreWeaveComputeAcquisitionCoIVLLCMember" name="CoreWeaveComputeAcquisitionCoIVLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AugustElevenThousandTwentyFiveMember" name="AugustElevenThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_FoundationRiskPartnersMember" name="FoundationRiskPartnersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_IndependentPricingServiceOrDirectlyFromIndependentBrokerMember" name="IndependentPricingServiceOrDirectlyFromIndependentBrokerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyDividendDistributionFromDistributableEarningsLosses" name="InvestmentCompanyDividendDistributionFromDistributableEarningsLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_InterestRateSwapThreeMember" name="InterestRateSwapThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_BrownAndRootMember" name="BrownAndRootMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfValueOfNetAssetsToBeConsideredQuarterlyForPreIncentiveFeeNetInvestmentIncome" name="PercentageOfValueOfNetAssetsToBeConsideredQuarterlyForPreIncentiveFeeNetInvestmentIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_RepurchaseObligationsMember" name="RepurchaseObligationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_FEGIncMember" name="FEGIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InterestRateSwapTwoMember" name="InterestRateSwapTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ConfluentHoldingsLLCMember" name="ConfluentHoldingsLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_TemporaryEquitySharesRedeemed" name="TemporaryEquitySharesRedeemed" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_ClassCNotesMember" name="ClassCNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MarchTwentySevenTwoThousandTwentyFiveMember" name="MarchTwentySevenTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_TwoThousandThirtyOneNotesMember" name="TwoThousandThirtyOneNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_CadoganTateMember" name="CadoganTateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_WholesaleMember" name="WholesaleMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfTotalBorrowingCosts" name="PercentageOfTotalBorrowingCosts" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_BoassoGlobalMember" name="BoassoGlobalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_OctoberThirtyOneTwoThousandTwentyFourMember" name="OctoberThirtyOneTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeriesFNotesMember" name="SeriesFNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationOnForeignCurrencyForwardContracts" name="NetChangeInUnrealizedAppreciationDepreciationOnForeignCurrencyForwardContracts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_DebtSecuritizationMember" name="DebtSecuritizationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeriesANotesMember" name="SeriesANotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MeasurementInputMarketYieldDiscountRateMember" name="MeasurementInputMarketYieldDiscountRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfOutstandingVotingSecuritiesOwned" name="PercentageOfOutstandingVotingSecuritiesOwned" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_MeasurementInputTransactionPriceMember" name="MeasurementInputTransactionPriceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_LearnosityMember" name="LearnosityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AzuriteIntermediateHoldingsIncMember" name="AzuriteIntermediateHoldingsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_HotelEquitiesGroupLLCMember" name="HotelEquitiesGroupLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeriesENotesMember" name="SeriesENotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DecemberTwentyOneTwoThousandTwentyOneMember" name="DecemberTwentyOneTwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_UnearnedPerformanceBasedIncentiveFeeOnUnrealizedGains" name="UnearnedPerformanceBasedIncentiveFeeOnUnrealizedGains" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_PercentageOfDesignatedDividendsPaidFromNetInvestmentTaxableIncome" name="PercentageOfDesignatedDividendsPaidFromNetInvestmentTaxableIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_AccordionFeatureMember" name="AccordionFeatureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_TwoThousandThirtyNotesMember" name="TwoThousandThirtyNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SpvIiFacilityMember" name="SpvIiFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_HotelGamingAndLeisureMember" name="HotelGamingAndLeisureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_BaseManagementFee" name="BaseManagementFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_SeriesANotesSeriesCNotesMember" name="SeriesANotesSeriesCNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_RevolverMember" name="RevolverMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ChangeInUnrealizedAppreciationDepreciationOnInvestments" name="ChangeInUnrealizedAppreciationDepreciationOnInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_AdministrationFees" name="AdministrationFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_DebtInstrumentCovenantComplianceMinimumAssetCoverageRatio" name="DebtInstrumentCovenantComplianceMinimumAssetCoverageRatio" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DerivativeCounterpartyMacquarieMember" name="DerivativeCounterpartyMacquarieMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetRealizedGainLossOnInvestments" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetRealizedGainLossOnInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_InvestmentOwnedAtFairValueAsPercentageOfNetAssets" name="InvestmentOwnedAtFairValueAsPercentageOfNetAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SkyMergerSubLLCMember" name="SkyMergerSubLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_NovemberFourTwoThousandTwentyFourMember" name="NovemberFourTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_TemporaryEquityShareIssuedPercentage" name="TemporaryEquityShareIssuedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_RegularDividendsPayableAmountPerShare" name="RegularDividendsPayableAmountPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_JuneTwentySevenTwoThousandTwentyFourMember" name="JuneTwentySevenTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_CashAndCashEquivalentsPercentOfNetAssets" name="CashAndCashEquivalentsPercentOfNetAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_MarchTwentySevenTwoThousandTwentyFourMember" name="MarchTwentySevenTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InterestRateSwap" name="InterestRateSwap" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_AerospaceAndDefenseMember" name="AerospaceAndDefenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_LigadoNetworksLLCMember" name="LigadoNetworksLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_IncreaseDecreaseInPrincipalReceivable" name="IncreaseDecreaseInPrincipalReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_NetChangeInUnrealizedAppreciationDepreciationOnNonControlledNonAffiliatedInvestments" name="NetChangeInUnrealizedAppreciationDepreciationOnNonControlledNonAffiliatedInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_RedemptionOfPreferredSharesShares" name="RedemptionOfPreferredSharesShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_CommonStockSharesClassified" name="CommonStockSharesClassified" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_InvestmentOwnedAtCostAndCashAndCashEquivalentsAtCarryingValue" name="InvestmentOwnedAtCostAndCashAndCashEquivalentsAtCarryingValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_IncreaseDecreaseInCapitalGainsIncentiveFeePayable" name="IncreaseDecreaseInCapitalGainsIncentiveFeePayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_SeptemberTwentySixTwoThousandTwentyFiveMember" name="SeptemberTwentySixTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfInvestmentsOnAnAmortizedCostBasis" name="PercentageOfInvestmentsOnAnAmortizedCostBasis" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DFSHoldingCompanyMember" name="DFSHoldingCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_InvestmentCompanyAdministrationAgreementTerminationNoticePeriod" name="InvestmentCompanyAdministrationAgreementTerminationNoticePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DerivativeAssetNotionalAmountTransacted" name="DerivativeAssetNotionalAmountTransacted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_PercentageOfPerformingDebtInvestments" name="PercentageOfPerformingDebtInvestments" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_LoanRepurchaseObligationsMember" name="LoanRepurchaseObligationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PercentageOfValueOfNetAssetsToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome" name="PercentageOfValueOfNetAssetsToBeConsideredAnnuallyForPreIncentiveFeeNetInvestmentIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SummaryOfDividendReinvestmentPlanSharesIssuedToShareholdersAndValueOfSuchSharesTableTextBlock" name="SummaryOfDividendReinvestmentPlanSharesIssuedToShareholdersAndValueOfSuchSharesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_ContainersPackagingAndGlassMember" name="ContainersPackagingAndGlassMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MarchTwentyEightTwoThousandTwentyFourMember" name="MarchTwentyEightTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AccruedExpensesAndOtherLiabilitiesMember" name="AccruedExpensesAndOtherLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DecemberSixteenTwoThousandTwentyFiveMember" name="DecemberSixteenTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_PortfolioInvestmentsAndCashAndCashEquivalentsFairValueDisclosure" name="PortfolioInvestmentsAndCashAndCashEquivalentsFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_InvestmentIncomePaidInKindDividend" name="InvestmentIncomePaidInKindDividend" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_UnfundedCommitmentsTableTextBlock" name="UnfundedCommitmentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_DerivativesReceivablePercentage" name="DerivativesReceivablePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_UnfundedCommitmentBalances" name="UnfundedCommitmentBalances" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001849894_DecemberTwentyEightTwoThousandTwentyThreeMember" name="DecemberTwentyEightTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_AugustTwelveTwoThousandTwentyFourMember" name="AugustTwelveTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_ManagementFeesDescription" name="ManagementFeesDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001849894_SurveyMonkeyGlobalIncMember" name="SurveyMonkeyGlobalIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SeriesCNotesMember" name="SeriesCNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_TICBidcoLTDMember" name="TICBidcoLTDMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_SixPointOneTwoFivePercentageNotesDueTwoThousandAndThirtyOneMember" name="SixPointOneTwoFivePercentageNotesDueTwoThousandAndThirtyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_FirstLienDebtMember" name="FirstLienDebtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_DebtInstrumentCovenantComplianceMinimumConsolidatedNetWorth" name="DebtInstrumentCovenantComplianceMinimumConsolidatedNetWorth" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001849894_BankingFinanceInsuranceAndRealestateMember" name="BankingFinanceInsuranceAndRealestateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001849894_MarchSixTwoThousandTwentyFourMember" name="MarchSixTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
</xsd:schema>
