.. _exhale_define__ifc4x1-definitions_8h_1a656043f5b54379c8c7556f09a152abc2:

Define SCHEMA_IfcWorkControl_Duration_IS_OPTIONAL
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- Defined in :ref:`file_src_ifcparse_Ifc4x1-definitions.h`


Define Documentation
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.. doxygendefine:: SCHEMA_IfcWorkControl_Duration_IS_OPTIONAL