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    <element id="BKHAU_ProceedsFromSaleOfIpoUnits" name="ProceedsFromSaleOfIpoUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ProceedsFromSaleOfIpoUnitsShares" name="ProceedsFromSaleOfIpoUnitsShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ProceedsFromSaleOfPrivatePlacementUnits" name="ProceedsFromSaleOfPrivatePlacementUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ProceedsFromSaleOfPrivatePlacementUnitsShares" name="ProceedsFromSaleOfPrivatePlacementUnitsShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_IssuanceOfRepresentativeShares" name="IssuanceOfRepresentativeShares" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_IssuanceOfRepresentativeSharesShares" name="IssuanceOfRepresentativeSharesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_CommonStockSubjectToPossibleRedemption" name="CommonStockSubjectToPossibleRedemption" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_CommonStockSubjectToPossibleRedemptionShares" name="CommonStockSubjectToPossibleRedemptionShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ConversionOfClassBToClassOrdinaryShares" name="ConversionOfClassBToClassOrdinaryShares" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ConversionOfClassBToClassOrdinarySharesShares" name="ConversionOfClassBToClassOrdinarySharesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_UnderwriterCommissions" name="UnderwriterCommissions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_OfferingCosts" name="OfferingCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_AccretionOfAdditionalPaidInCapitalToAccumulatedDeficit" name="AccretionOfAdditionalPaidInCapitalToAccumulatedDeficit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_InterestIncomeExpenseNets" name="InterestIncomeExpenseNets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ChangeInFairValueOfDerivativeLiabilities" name="ChangeInFairValueOfDerivativeLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_CashDepositedInTrustAccount" name="CashDepositedInTrustAccount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_CashWithdrawanFromTrustToPayRedeemedPublicShareholders" name="CashWithdrawanFromTrustToPayRedeemedPublicShareholders" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ProceedsFromIssuanceOfPromissoryNoteToRelatedParty" name="ProceedsFromIssuanceOfPromissoryNoteToRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ProceedsFromDueToTargetCompany" name="ProceedsFromDueToTargetCompany" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_IssuanceOfConvertibleNoteRecognitionOfDerivativeLiability" name="IssuanceOfConvertibleNoteRecognitionOfDerivativeLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ReclassificationOfDerivativeLiabilityToApic" name="ReclassificationOfDerivativeLiabilityToApic" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_InitialClassificationOfCommonStockSubjectToPossibleRedemption" name="InitialClassificationOfCommonStockSubjectToPossibleRedemption" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_AccretionsOfAdditionalPaidInCapitalToAccumulatedDeficit" name="AccretionsOfAdditionalPaidInCapitalToAccumulatedDeficit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ChangeInValueOfClassCommonStockSubjectToPossibleRedemption" name="ChangeInValueOfClassCommonStockSubjectToPossibleRedemption" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_DeferredUnderwritingFeePayable" name="DeferredUnderwritingFeePayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_DisclosureInitialPublicOfferingAbstract" name="DisclosureInitialPublicOfferingAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ProposedPublicOfferingTextBlock" name="ProposedPublicOfferingTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_DisclosurePrivatePlacementAbstract" name="DisclosurePrivatePlacementAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_PrivatePlacementTextBlock" name="PrivatePlacementTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_DisclosureDueToTargetCompanyAbstract" name="DisclosureDueToTargetCompanyAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_DueToTargetCompanyTextBlock" name="DueToTargetCompanyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_EmergingGrowthCompanyPolicyTextBlock" name="EmergingGrowthCompanyPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_InvestmenstHeldInTrustAccountPolicyTextBlock" name="InvestmenstHeldInTrustAccountPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_DeferredOfferingCostPolicyTextBlock" name="DeferredOfferingCostPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_RelatedPartyPolicyTextBlock" name="RelatedPartyPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_OrdinarySharesSubjectToPossibleRedemptionPolicyTextBlock" name="OrdinarySharesSubjectToPossibleRedemptionPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ConvertiblePromissoryNotesAndDerivativeLiabilitiesPolicyTextBlock" name="ConvertiblePromissoryNotesAndDerivativeLiabilitiesPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ScheduleOfFairValueOfTheConversionFeatureAssumptionsTableTextBlock" name="ScheduleOfFairValueOfTheConversionFeatureAssumptionsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_TransactionCosts" name="TransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_CashUnderwriting" name="CashUnderwriting" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_IssuanceOfRepresentativeShare" name="IssuanceOfRepresentativeShare" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_PercentageOfAssetHeldInTrustAccount" name="PercentageOfAssetHeldInTrustAccount" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_BusinessCombinationPercentageOfVotingSecurities" name="BusinessCombinationPercentageOfVotingSecurities" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_AggregateAmount" name="AggregateAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_TransactionValue" name="TransactionValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ClassOdinarySharesSubjectToPossibleRedemptionSharesIssued" name="ClassOdinarySharesSubjectToPossibleRedemptionSharesIssued" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ClassOdinarySharesSubjectToPossibleRedemptionSharesOutstanding" name="ClassOdinarySharesSubjectToPossibleRedemptionSharesOutstanding" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_WorkingCapitalDeficit" name="WorkingCapitalDeficit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_PaymentsFromSponser" name="PaymentsFromSponser" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_BasicAndDilutedNetPerShareAbstract" name="BasicAndDilutedNetPerShareAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_NumeratorAbstract" name="NumeratorAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_DenominatorAbstract" name="DenominatorAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_BasicAndDilutedWeightedAverageSharesOutstanding" name="BasicAndDilutedWeightedAverageSharesOutstanding" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_BasicAndDilutedNetIncomeLossPerOrdinaryShare" name="BasicAndDilutedNetIncomeLossPerOrdinaryShare" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_UnderwritingFees" name="UnderwritingFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_OrdinaryShares" name="OrdinaryShares" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_GrossProceedsFromInitialPublicOffering" name="GrossProceedsFromInitialPublicOffering" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_StrikePrice" name="StrikePrice" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_BusinessCombinationSuccessRate" name="BusinessCombinationSuccessRate" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_InitialRecognitionAtIssuance" name="InitialRecognitionAtIssuance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ChangeInValuationRecognizedInEarnings" name="ChangeInValuationRecognizedInEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_AggregatedConsideration" name="AggregatedConsideration" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_AdjustedClassBOrdinaryShares" name="AdjustedClassBOrdinaryShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_FounderSharesIssued" name="FounderSharesIssued" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_FounderSharesOutstanding" name="FounderSharesOutstanding" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ConvertiblePromissoryNotes" name="ConvertiblePromissoryNotes" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_DebtDiscount" name="DebtDiscount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_NonCashLoss" name="NonCashLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_FairValueOfConversion" name="FairValueOfConversion" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_NonCashGain" name="NonCashGain" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_WorkingCapitalLoans" name="WorkingCapitalLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_GeneralAndAdministrativeExpenses" name="GeneralAndAdministrativeExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_CompanyDrew" name="CompanyDrew" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_ExtensionFees" name="ExtensionFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BKHAU_WorkingCapital" name="WorkingCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
