.. _exhale_define__ifc2x3-definitions_8h_1a8c68c45acb74d39aac2bd7ce2ad59594:

Define SCHEMA_IfcPropertyConstraintRelationship_Description_IS_OPTIONAL
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- Defined in :ref:`file_src_ifcparse_Ifc2x3-definitions.h`


Define Documentation
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.. doxygendefine:: SCHEMA_IfcPropertyConstraintRelationship_Description_IS_OPTIONAL