code: def register_internal_serializable(path, symbol):
      global REGISTERED_NAMES_TO_OBJS
      if isinstance(path, (list, tuple)):
          name = path[0]
      else:
          name = path
      REGISTERED_NAMES_TO_OBJS[name] = symbol
      REGISTERED_OBJS_TO_NAMES[symbol] = name
  
label_desc: Use image node_id 1 for calling a global function with example usage: register_internal_serializable(path, symbol) without return types