get_files
Description:
Lists all the selected files and subfolders in the current folder of this as `GFile`.
Note: 
      
        
    
    Use [class@Gtk.FileDialog] instead
Parameters:
| this | 
           a `GtkFileChooser`  | 
      
Returns:
| 
           a list model containing a `GFile` for each selected file and subfolder in the current folder. Free the returned list with unref.  |