The method that Revit will invoke to perform an export to Navisworks. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2014 
Syntax
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Parameters
- document
-  Type:  Autodesk.Revit.DB Document  
 The document to export.
- folder
-  Type:  System String  
 The folder path.
- name
-  Type:  System String  
 The file name.
- options
-  Type:  Autodesk.Revit.DB NavisworksExportOptions  
 The export options.