code: def SetParseFn(fn, *arguments):
      """Sets the fn for Fire to use to parse args when calling the decorated fn.
  
      Args:
        fn: The function to be used for parsing arguments.
        *arguments: The arguments for which to use the parse fn. If none are listed,
          then this will set the default parse function.
      Returns:
        The decorated function, which now has metadata telling Fire how to perform.
      """
  
      def _Decorator(func):
          parse_fns = GetParseFns(func)
          if not arguments:
              parse_fns["default"] = fn
          else:
              for argument in arguments:
                  parse_fns["named"][argument] = fn
          _SetMetadata(func, FIRE_PARSE_FNS, parse_fns)
          return func
  
      return _Decorator
  
file_path: python-fire/fire/decorators.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import inspect
label_desc: Use image node_id 1 for calling a global function with example usage: SetParseFn(fn) and returns: _Decorator, func