The description of a field within a Schema in the Extensible Storage framework. Contains the field's name, type, access control and documentation. 
   Namespace:   Autodesk.Revit.DB.ExtensibleStorage  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2012 
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