fetch_interfaces_async
Description:
Parameters:
| this | |
| cancellable | 
           cancellation object  | 
      
| callback | 
           completion callback  | 
      
| user_data | 
           opaque data for callback  | 
      
| this | |
| cancellable | 
           cancellation object  | 
      
| callback | 
           completion callback  | 
      
| user_data | 
           opaque data for callback  |