Provides implementation of RebarContainer parameters overrides. 
   Namespace:   Autodesk.Revit.DB.Structure  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0) 
  Since:  2016 
Syntax
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Remarks
 When a new override is created, by default, the parameter will show the overridden value as read-only. You can control whether or not the parameter is modifiable using  SetOverriddenParameterReadonly(ElementId)  and  SetOverriddenParameterModifiable(ElementId)  .a