code: def to_bytes(target) -> bytes:
      """Save optimizer or other object as msgpack-serialized state-dict.
  
      Args:
        target: template object with state-dict registrations to be
          serialized to msgpack format.  Typically a flax model or optimizer.
  
      Returns:
        Bytes of msgpack-encoded state-dict of ``target`` object.
      """
      state_dict = to_state_dict(target)
      return msgpack_serialize(state_dict, in_place=True)
  
imports: import enum
  import threading
  from contextlib import contextmanager
  from typing import Any, Dict, List
  import jax
  import msgpack
  import numpy
label_desc: Use image node_id 26 for calling a global function with example usage: to_bytes(target) and returns: msgpack_serialize