The custom AddInId attribute for Macros macros use only.
Namespace: Autodesk.Revit.DB.Macros
Assembly: RevitAPI (in RevitAPI.dll) Version: 19.0.0.0 (19.2.0.66)
Since: 2011
Namespace: Autodesk.Revit.DB.Macros
Assembly: RevitAPI (in RevitAPI.dll) Version: 19.0.0.0 (19.2.0.66)
Since: 2011