.. _exhale_define__ifc4x3__rc1-definitions_8h_1a679a9d3f476cc881af067150a513c441:

Define SCHEMA_IfcPropertyReferenceValue_UsageName_IS_OPTIONAL
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- Defined in :ref:`file_src_ifcparse_Ifc4x3_rc1-definitions.h`


Define Documentation
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.. doxygendefine:: SCHEMA_IfcPropertyReferenceValue_UsageName_IS_OPTIONAL