code: def run(self, args):
          
          kwargs = {}
          kwargs['path'] = args.file[0]
          kwargs['addr'] = args.addr
          kwargs['on_progress'] = pylink.util.flash_progress_callback
  
          jlink = self.create_jlink(args)
          _ = jlink.flash_file(**kwargs)
          print('Flashed device successfully.')
docs: Flashes the device connected to the J-Link.
  
          Args:
            self (FlashCommand): the ``FlashCommand`` instance
            args (Namespace): the arguments passed on the command-line
  
          Returns:
            ``None``