Corresponding C++ library: TG_Db 

Schema: Bentley_Standard_CustomAttributes, Version: 1.13, Class: AdhocPropertyContainerDefinition Available properties: "NameProperty"(string), "DisplayLabelProperty"(string), "ValueProperty"(string), "TypeProperty"(string), "UnitProperty"(string), "ExtendTypeProperty"(string), "IsReadOnlyProperty"(string), "IsHiddenProperty"(string)