code: def func_pickle(func, suffix=".pik", dir="."):
      """standard pickle.dump of function to a NamedTemporaryFile"""
      from dill.temp import dump
  
      return dump(func, suffix=suffix, dir=dir)
  
label_desc: Use image node_id 1 for calling a global function with example usage: func_pickle(func, suffix, dir) and returns: dump