code: def register_optimizer(key: str, module: Any = None):
      r"""Registers an optimizer in GraphGym."""
      return register_base(optimizer_dict, key, module)
  
imports: import warnings
  from typing import Any, Callable, Dict, Union
label_desc: Use image node_id 13 for calling a global function with example usage: register_optimizer(key, module) and returns: register_base