Types of text-note leaders 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0) 
Syntax
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Members
| Member name | Description | 
|---|---|
| TNLT_STRAIGHT_L | A line leader attached from the left side of a text element | 
| TNLT_STRAIGHT_R | A line leader attached from the right side of a text element | 
| TNLT_ARC_L | An arc leader attached from the left side of a text element | 
| TNLT_ARC_R | An arc leader attached from the right side of a text element |