This method is deprecated in Revit 2022 and may be removed in a future version of Revit. Please use the `IsValidPaletteIndex` method instead. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0) 
  Since:  2016 
Syntax
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Parameters
- groupIndex
-  Type:  System Int32  
 The group index to check.