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  <xsd:element name="RiskAndUncertaintyConcentrationOfThreeOfInvestmentsAtFairValue" id="mcb_RiskAndUncertaintyConcentrationOfThreeOfInvestmentsAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SecureAct2.0Table" id="mcb_SecureAct2.0Table" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SecureAct2.0LineItems" id="mcb_SecureAct2.0LineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SecureAct2.0DisclosureTextBlock" id="mcb_SecureAct2.0DisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
</xsd:schema>
