The method that Revit will invoke to perform an import from IFC. 
   Namespace:   Autodesk.Revit.DB.IFC  
  Assembly:   RevitAPIIFC  (in RevitAPIIFC.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2014 
Syntax
| C# | 
|---|
   |  
| Visual Basic | 
|---|
   |  
| Visual C++ | 
|---|
   |  
Parameters
- importer
 -  Type:  Autodesk.Revit.DB.IFC ImporterIFC  
The IFC importer.