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  <xs:element name="ReclassificationOfSeriesATemporaryEquityToStockholdersEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_ReclassificationOfSeriesATemporaryEquityToStockholdersEquity"/>
  <xs:element name="DirectorsandOfficersInsurancePolicyFinancing" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_DirectorsandOfficersInsurancePolicyFinancing"/>
  <xs:element name="ModificationsToWarrantsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ModificationsToWarrantsPolicyTextBlock"/>
  <xs:element name="ScheduleOfRedemptionValueOfSharesOfSeriesAPreferredStockTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ScheduleOfRedemptionValueOfSharesOfSeriesAPreferredStockTableTextBlock"/>
  <xs:element name="ScheduleOfClassesOfOutstandingStockWarrantsTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ScheduleOfClassesOfOutstandingStockWarrantsTableTextBlock"/>
  <xs:element name="ScheduleOfLeaseAssetsAndLiabilitiesTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ScheduleOfLeaseAssetsAndLiabilitiesTableTextBlock"/>
  <xs:element name="ScheduleOfWeightedAverageLeaseTermAndDiscountRatesTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ScheduleOfWeightedAverageLeaseTermAndDiscountRatesTableTextBlock"/>
  <xs:element name="SummaryofSignificantAccountingPoliciesScheduleoftheEstimatedTransactionPriceDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_SummaryofSignificantAccountingPoliciesScheduleoftheEstimatedTransactionPriceDetailsTable"/>
  <xs:element name="PropertyPlantAndEquipmentsNet" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_PropertyPlantAndEquipmentsNet"/>
  <xs:element name="InitialFairValueOfTheSeriesAPreferredStock" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_InitialFairValueOfTheSeriesAPreferredStock"/>
  <xs:element name="AccretionOfSeriesBIssuances" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_AccretionOfSeriesBIssuances"/>
  <xs:element name="RedeemableSeriesAPreferredStockBeginningBalance" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="cast_RedeemableSeriesAPreferredStockBeginningBalance"/>
  <xs:element name="ReclassFromMezzanineEquityToPermanentEquity" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ReclassFromMezzanineEquityToPermanentEquity"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentGranted" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentGranted"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsWarrantsIssuedIntrinsicValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsWarrantsIssuedIntrinsicValue"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsWarrantsExpiredAndForfeitedIntrinsicValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsWarrantsExpiredAndForfeitedIntrinsicValue"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsWarrantsExercisedIntrinsicValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsWarrantsExercisedIntrinsicValue"/>
  <xs:element name="ClassOfWarrantOrRightExercisable" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="cast_ClassOfWarrantOrRightExercisable"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedExercisableWeightedAverageGrantDateFairValue" type="dtr:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedExercisableWeightedAverageGrantDateFairValue"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageRemainingContractualTerms" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageRemainingContractualTerms"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsWarrantsExercisableIntrinsicValueEndingBalance" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsWarrantsExercisableIntrinsicValueEndingBalance"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityScheduleofClassesofOutstandingStockWarrantsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_StockholdersDeficitandMezzanineEquityScheduleofClassesofOutstandingStockWarrantsDetailsTable"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityScheduleofOutstandingStockOptionsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_StockholdersDeficitandMezzanineEquityScheduleofOutstandingStockOptionsDetailsTable"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityScheduleofOutstandingStockOptionsDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_StockholdersDeficitandMezzanineEquityScheduleofOutstandingStockOptionsDetailsLineItems"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOptionsIssuedWeightedAverageRemainingLifeyears" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOptionsIssuedWeightedAverageRemainingLifeyears"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOptionsIssuedIntrinsicValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOptionsIssuedIntrinsicValue"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodWeightedAverageRemainingContractualTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodWeightedAverageRemainingContractualTerm"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCancelledInPeriodTotalIntrinsicValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCancelledInPeriodTotalIntrinsicValue"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOptionsExpiredIntrinsicValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOptionsExpiredIntrinsicValue"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityScheduleofVestingTermsofOutstandingStockOptionsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_StockholdersDeficitandMezzanineEquityScheduleofVestingTermsofOutstandingStockOptionsDetailsTable"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityScheduleofWeightedaverageGrantShareBasedAwardsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_StockholdersDeficitandMezzanineEquityScheduleofWeightedaverageGrantShareBasedAwardsDetailsTable"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityScheduleofWeightedaverageGrantShareBasedAwardsDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_StockholdersDeficitandMezzanineEquityScheduleofWeightedaverageGrantShareBasedAwardsDetailsLineItems"/>
  <xs:element name="LeasesScheduleofLeaseAssetsandLiabilitiesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_LeasesScheduleofLeaseAssetsandLiabilitiesDetailsTable"/>
  <xs:element name="LeasesScheduleofLeaseAssetsandLiabilitiesDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_LeasesScheduleofLeaseAssetsandLiabilitiesDetailsLineItems"/>
  <xs:element name="FinanceLeaseCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_FinanceLeaseCost"/>
  <xs:element name="DeferredTaxAssetAccruedLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_DeferredTaxAssetAccruedLiabilities"/>
  <xs:element name="DeferredTaxAssetsDepreciationAndAmortization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_DeferredTaxAssetsDepreciationAndAmortization"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageExercisePrice" type="dtr:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageExercisePrice"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableNumber" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableNumber"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice" type="dtr:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercisable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercisable"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageExercisePriceGranted" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageExercisePriceGranted"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueGranted" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueGranted"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageExercisePriceExpired" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageExercisePriceExpired"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExpired" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExpired"/>
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageExercisePriceExercised" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageExercisePriceExercised"/>
  <xs:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercised" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercised"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityScheduleofVestingTermsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_StockholdersDeficitandMezzanineEquityScheduleofVestingTermsDetailsTable"/>
  <xs:element name="GoingConcernForAPeriodOfIssuanceOfFinancialStatements" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_GoingConcernForAPeriodOfIssuanceOfFinancialStatements"/>
  <xs:element name="SummaryofSignificantAccountingPoliciesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_SummaryofSignificantAccountingPoliciesDetailsTable"/>
  <xs:element name="FDICIndemnificationAssetExceededInsured" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_FDICIndemnificationAssetExceededInsured"/>
  <xs:element name="GainOnSettlementOfAccountsPayablePolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_GainOnSettlementOfAccountsPayablePolicyTextBlock"/>
  <xs:element name="SubscriptionPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SubscriptionPeriod"/>
  <xs:element name="RetrospectiveAdjustmentstoCompanyStockDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_RetrospectiveAdjustmentstoCompanyStockDetailsTable"/>
  <xs:element name="NumberOfShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_NumberOfShares"/>
  <xs:element name="DebtDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_DebtDetailsTable"/>
  <xs:element name="DebtInstrumentRemittedPayment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_DebtInstrumentRemittedPayment"/>
  <xs:element name="MaximumAdvanceAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_MaximumAdvanceAmount"/>
  <xs:element name="DownpaymentAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_DownpaymentAmount"/>
  <xs:element name="AggregateAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_AggregateAmount"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_StockholdersDeficitandMezzanineEquityDetailsTable"/>
  <xs:element name="StockholdersDeficitandMezzanineEquityDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_StockholdersDeficitandMezzanineEquityDetailsLineItems"/>
  <xs:element name="InitialFairValueDiscountedPerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_InitialFairValueDiscountedPerShare"/>
  <xs:element name="InitialFairValueDiscountedAggregateAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_InitialFairValueDiscountedAggregateAmount"/>
  <xs:element name="SignificantInputsInitialFairValuePercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SignificantInputsInitialFairValuePercentage"/>
  <xs:element name="SignificantInputsLiquidity" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SignificantInputsLiquidity"/>
  <xs:element name="RevenueThresholdForAnnualDividendEligibility" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_RevenueThresholdForAnnualDividendEligibility"/>
  <xs:element name="BaseRevenueThresholdForDividendCalculation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_BaseRevenueThresholdForDividendCalculation"/>
  <xs:element name="MaximumAggregateAnnualDividendPaymentCap" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_MaximumAggregateAnnualDividendPaymentCap"/>
  <xs:element name="CallRightClosingPeriodForRedemptionOfShares" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_CallRightClosingPeriodForRedemptionOfShares"/>
  <xs:element name="PercentageOfSharesOutstandingWithMajorShareholder" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_PercentageOfSharesOutstandingWithMajorShareholder"/>
  <xs:element name="ReclassifiedShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ReclassifiedShares"/>
  <xs:element name="FairValueAmortizationPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_FairValueAmortizationPeriod"/>
  <xs:element name="UnrecognizedShareBasedCompensationExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_UnrecognizedShareBasedCompensationExpense"/>
  <xs:element name="NumberOfSharesTransferred" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_NumberOfSharesTransferred"/>
  <xs:element name="MaximumAggregateEquityPurchaseCommitmentAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_MaximumAggregateEquityPurchaseCommitmentAmount"/>
  <xs:element name="PurchasePricePercentageOfVolumeWeightedAveragePrice" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_PurchasePricePercentageOfVolumeWeightedAveragePrice"/>
  <xs:element name="OwnershipLimitPercentageToInvestor" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_OwnershipLimitPercentageToInvestor"/>
  <xs:element name="PercentageOfIncreaseOrDecreaseInOwnershipInterest" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_PercentageOfIncreaseOrDecreaseInOwnershipInterest"/>
  <xs:element name="CommitmentFeeAmountPayableInSharesValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_CommitmentFeeAmountPayableInSharesValue"/>
  <xs:element name="CommitmentFeeAmountPayableInSharesPricePerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="cast_CommitmentFeeAmountPayableInSharesPricePerShare"/>
  <xs:element name="NumberOfTradingDays" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_NumberOfTradingDays"/>
  <xs:element name="DepositReceivedFromInvestor" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_DepositReceivedFromInvestor"/>
  <xs:element name="SharesIssuedForServicesNetEffectOnShareholderDeficit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_SharesIssuedForServicesNetEffectOnShareholderDeficit"/>
  <xs:element name="IncreaseInParValueOfCommonStock" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_IncreaseInParValueOfCommonStock"/>
  <xs:element name="CommitmentsandContingenciesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_CommitmentsandContingenciesDetailsTable"/>
  <xs:element name="LeaseAgreement" type="xbrli:durationItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="cast_LeaseAgreement"/>
  <xs:element name="ExtendedLeaseFirstAmendment" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ExtendedLeaseFirstAmendment"/>
  <xs:element name="BonusPaidNoLaterThanTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_BonusPaidNoLaterThanTerm"/>
  <xs:element name="NetProceedFromOffering" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_NetProceedFromOffering"/>
  <xs:element name="LeasesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_LeasesDetailsTable"/>
  <xs:element name="LeasesDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_LeasesDetailsLineItems"/>
  <xs:element name="NumberOfActiveLeases" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_NumberOfActiveLeases"/>
  <xs:element name="ShortTermLeaseInitialTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ShortTermLeaseInitialTerm"/>
  <xs:element name="IncomeTaxesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_IncomeTaxesDetailsTable"/>
  <xs:element name="IncomeTaxesDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_IncomeTaxesDetailsLineItems"/>
  <xs:element name="ChannelDomainDomain" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ChannelDomainDomain"/>
  <xs:element name="RelatedPartiesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_RelatedPartiesDetailsTable"/>
  <xs:element name="AccruedCompensationExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_AccruedCompensationExpenses"/>
  <xs:element name="RelatedPartyTransactionOwnershipPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_RelatedPartyTransactionOwnershipPercentage"/>
  <xs:element name="FairMarketValuedPerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_FairMarketValuedPerShare"/>
  <xs:element name="AdditionalBorrowedAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_AdditionalBorrowedAmount"/>
  <xs:element name="ExchangeOfStockNewIssuance" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ExchangeOfStockNewIssuance"/>
  <xs:element name="RelatedPartyDistributedShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_RelatedPartyDistributedShares"/>
  <xs:element name="MonthlyFeePercentageOnCostOfProduction" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_MonthlyFeePercentageOnCostOfProduction"/>
  <xs:element name="RenewedAndModifiedOriginalNoteToIncorporateAdditionalBorrowings" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_RenewedAndModifiedOriginalNoteToIncorporateAdditionalBorrowings"/>
  <xs:element name="SettlementOfAccountsReceivableFromRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_SettlementOfAccountsReceivableFromRelatedParties"/>
  <xs:element name="NotesPayableToRelatedPartiesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_NotesPayableToRelatedPartiesCurrent"/>
  <xs:element name="AccruedInterestPayableCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_AccruedInterestPayableCurrent"/>
  <xs:element name="RelatedPartyDebt" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="cast_RelatedPartyDebt"/>
  <xs:element name="DownPaymentAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_DownPaymentAmount"/>
  <xs:element name="OneTimeFeeForDataAndServices" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_OneTimeFeeForDataAndServices"/>
  <xs:element name="MonthlyFeeForDataAndServices" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="cast_MonthlyFeeForDataAndServices"/>
  <xs:element name="SubsequentTermExtension" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SubsequentTermExtension"/>
  <xs:element name="DisaggregationofRevenuesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_DisaggregationofRevenuesDetailsTable"/>
  <xs:element name="SubsequentEventsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="cast_SubsequentEventsDetailsTable"/>
  <xs:element name="WarrantsIssued" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_WarrantsIssued"/>
  <xs:element name="ChannelAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem" id="cast_ChannelAxis"/>
  <xs:element name="AdAgencyRevenueMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_AdAgencyRevenueMember"/>
  <xs:element name="AdRevenueMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_AdRevenueMember"/>
  <xs:element name="ArbitrageAdRevenueMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ArbitrageAdRevenueMember"/>
  <xs:element name="BoardOfDirectorsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_BoardOfDirectorsMember"/>
  <xs:element name="BuyingAndSellingOfAdvertisingMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_BuyingAndSellingOfAdvertisingMember"/>
  <xs:element name="CelebrityCigarsIncMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_CelebrityCigarsIncMember"/>
  <xs:element name="CelebrityCigarsIncOneMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_CelebrityCigarsIncOneMember"/>
  <xs:element name="ChannelStreamingMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ChannelStreamingMember"/>
  <xs:element name="ChrisSavineMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ChrisSavineMember"/>
  <xs:element name="CigarsIncMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_CigarsIncMember"/>
  <xs:element name="ClassACommonStockSubscriptionsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ClassACommonStockSubscriptionsMember"/>
  <xs:element name="ClassFiveWarrantsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ClassFiveWarrantsMember"/>
  <xs:element name="ClassFourWarrantsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ClassFourWarrantsMember"/>
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  <xs:element name="ClassSixWarrantsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ClassSixWarrantsMember"/>
  <xs:element name="ClassThreeWarrantsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ClassThreeWarrantsMember"/>
  <xs:element name="ClassTwoWarrantsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ClassTwoWarrantsMember"/>
  <xs:element name="CommonStockSubscriptionsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_CommonStockSubscriptionsMember"/>
  <xs:element name="ConvertibleNotePayableRelatedPartyMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ConvertibleNotePayableRelatedPartyMember"/>
  <xs:element name="ConvertibleNotesPayable1Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ConvertibleNotesPayable1Member"/>
  <xs:element name="ConvertibleNotesPayableRelatedPartyMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ConvertibleNotesPayableRelatedPartyMember"/>
  <xs:element name="ConvertiblePromissoryNoteMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ConvertiblePromissoryNoteMember"/>
  <xs:element name="CustomerThreeMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_CustomerThreeMember"/>
  <xs:element name="DebtConversionAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_DebtConversionAgreementMember"/>
  <xs:element name="DriveLiveIncMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_DriveLiveIncMember"/>
  <xs:element name="ExercisePrice025Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ExercisePrice025Member"/>
  <xs:element name="ExercisePrice060Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ExercisePrice060Member"/>
  <xs:element name="ExercisePrice175Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ExercisePrice175Member"/>
  <xs:element name="ExercisePrice300Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ExercisePrice300Member"/>
  <xs:element name="ExercisePrice400Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ExercisePrice400Member"/>
  <xs:element name="FASTChannelBuildoutsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_FASTChannelBuildoutsMember"/>
  <xs:element name="FASTRevenueRelatedPartiesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_FASTRevenueRelatedPartiesMember"/>
  <xs:element name="FASTRevenueServicesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_FASTRevenueServicesMember"/>
  <xs:element name="FreeCastAdPlatformMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_FreeCastAdPlatformMember"/>
  <xs:element name="IgniteMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_IgniteMember"/>
  <xs:element name="MaximPartnersLLCMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_MaximPartnersLLCMember"/>
  <xs:element name="MediaDistributionServicesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_MediaDistributionServicesMember"/>
  <xs:element name="MobleyJrsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_MobleyJrsMember"/>
  <xs:element name="MrMobleyMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_MrMobleyMember"/>
  <xs:element name="MrMobleysMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_MrMobleysMember"/>
  <xs:element name="NextelligenceMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_NextelligenceMember"/>
  <xs:element name="NotesPayableDAndOInsuranceFinancingMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_NotesPayableDAndOInsuranceFinancingMember"/>
  <xs:element name="NotesPayableMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_NotesPayableMember"/>
  <xs:element name="OtherRevenueMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_OtherRevenueMember"/>
  <xs:element name="ProductSalesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ProductSalesMember"/>
  <xs:element name="RedeemableSeriesAMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_RedeemableSeriesAMember"/>
  <xs:element name="RedeemableSeriesAPreferredStockMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_RedeemableSeriesAPreferredStockMember"/>
  <xs:element name="ReimbursementOfSuppliesAndRentMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ReimbursementOfSuppliesAndRentMember"/>
  <xs:element name="SaleMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SaleMember"/>
  <xs:element name="SecuritiesPurchaseAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SecuritiesPurchaseAgreementMember"/>
  <xs:element name="SportXLLCMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_SportXLLCMember"/>
  <xs:element name="TestDriveLiveCorpMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_TestDriveLiveCorpMember"/>
  <xs:element name="ThirdPartiesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_ThirdPartiesMember"/>
  <xs:element name="WilliamMobleyMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_WilliamMobleyMember"/>
  <xs:element name="FinanceLeaseAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_FinanceLeaseAbstract"/>
  <xs:element name="RetrospectiveAdjustmentsToCompanyStockLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="cast_RetrospectiveAdjustmentsToCompanyStockLineItems"/>
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</xs:schema>
