get_invoker
  
  Description:
  public FunctionInfo get_invoker ()
  
 
  
    If this virtual function has an associated invoker method, this method will return it.
     An invoker method is a C entry point.
    Not all virtuals will have invokers.
    Parameters:
    
    Returns:
    
      
        | the VFuncInfo or null. Free it with
              g_base_info_unrefwhen done. |