Find a DirectShapeType element by definition id. The element will be used for creating instances of that definition. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2015 
Syntax
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Parameters
- id
 -  Type:  System String  
Definition id. Expected to be unique. 
Return Value
Element id of a DirectShapeTypeElementExceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL |