An enumerated type listing all the Leader styles. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
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Members
| Member name | Description | 
|---|---|
| LCS_NONE | No leader. | 
| LCS_ONE_SEG_LINE | The leader only includes one line segment. | 
| LCS_ONE_SEG_ARC | The leader is an arc. | 
| LCS_TWO_SEG_LINE | The leader include two line segments. |