class_docstr: ABC for saver objects that implement saving/restoring to/from path, and merging two savers.
docstr: Save to save_path
  :param sess: active session for session-based frameworks (e.g. TF)
  :param save_path: full path to save checkpoint (typically directory plus self.path plus checkpoint count).
  :return: list of all saved paths
docstr_tok: ["Save","to","save_path",":","param","sess",":","active","session","for","session-based","frameworks","(","e.g",".","TF",")",":","param","save_path",":","full","path","to","save","checkpoint","(","typically","directory","plus","self.path","plus","checkpoint","count",")",".",":","return",":","list","of","all","saved","paths"]
code: def save(self, sess: Any, save_path: str) -> List[str]:
      """
      Save to save_path
      :param sess: active session for session-based frameworks (e.g. TF)
      :param save_path: full path to save checkpoint (typically directory plus self.path plus checkpoint count).
      :return: list of all saved paths
      """
      raise NotImplementedError
  
file_path: coach/rl_coach/saver.py
imports: from typing import Any, Dict, List
label_desc: Use image node_id 2 for calling the Saver obj's underlying member method code with example usage: obj.save(sess, save_path) without return types