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  <xs:element id="itgr_BusinessCombinationShareBasedPaymentArrangementEquityInstrumentsOtherThanOptionsSatisfactionOriginalServiceVestingConditionsPaidPercentage" abstract="false" name="BusinessCombinationShareBasedPaymentArrangementEquityInstrumentsOtherThanOptionsSatisfactionOriginalServiceVestingConditionsPaidPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="itgr_MergerAgreementBreachOfClosingConditionsAfterNoticeCurePeriod" abstract="false" name="MergerAgreementBreachOfClosingConditionsAfterNoticeCurePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itgr_MergerAgreementBreachOfClosingConditionsIfEarlierDaysPriorToOutsideDateCurePeriod" abstract="false" name="MergerAgreementBreachOfClosingConditionsIfEarlierDaysPriorToOutsideDateCurePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itgr_MergerAgreementTerminationConditionsDisclosurePeriod" abstract="false" name="MergerAgreementTerminationConditionsDisclosurePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itgr_MergerAgreementTerminationConditionsDisclosureConsummationTransactionInvolvingSuperiorMergerProposalPeriod" abstract="false" name="MergerAgreementTerminationConditionsDisclosureConsummationTransactionInvolvingSuperiorMergerProposalPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
</xs:schema>
