Exact EXPRESS attribute name, one of BULK_WRITABLE_ATTRIBUTES
(Name, Description, ObjectType, Tag). An entity whose class
does not declare it fails the run instead of being skipped.
Target IFC class (PascalCase, e.g. "IfcColumn").
OptionalpredefinedType?: string | nullOptional PredefinedType to set on the target class.
Action to apply to selected entities