The custom AddInId attribute for Macros macros use only.
Namespace: Autodesk.Revit.DB.Macros
Assembly: RevitAPI (in RevitAPI.dll) Version: 18.0.0.0 (18.2.0.13)
Since: 2011
Namespace: Autodesk.Revit.DB.Macros
Assembly: RevitAPI (in RevitAPI.dll) Version: 18.0.0.0 (18.2.0.13)
Since: 2011