Determines whether the NumericRevisionSettings object is in a valid state. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0) 
  Since:  2016 
Syntax
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Return Value
True if the NumericRevisionSettings is valid.Remarks
 The NumericRevisionSettings should at least contain a non-negative start number.