code: def __init__(
      self,
      object_to_save: core.Saveable,
      directory: str = "~/acme",
      subdirectory: str = "default",
      **tf_checkpointer_kwargs,
  ):
      super().__init__(
          dict(saveable=object_to_save),
          directory=directory,
          subdirectory=subdirectory,
          **tf_checkpointer_kwargs,
      )
  
file_path: acme/acme/jax/savers.py
imports: import datetime
  import os
  import pickle
  from typing import Any
  from absl import logging
  from acme import core
  from acme.tf import savers
  import jax
  import numpy
  import tree
label_desc: Use image node_id 1 to create a new Checkpointer object from inherited base classes: tf_savers with example: obj = Checkpointer(object_to_save, directory, subdirectory)