code: def create_agent_from_shared(shared_agent):
      """
      Instantiate an agent from the default `shared` params.
  
      :param shared_agent:
          should include an `opt` dictionary and agent `class`, along with
          whatever other parameters the agent needs to instantiate.
      """
      opt = copy.deepcopy(shared_agent["opt"])
      a = shared_agent["class"](opt, shared_agent)
      return a
  
imports: import copy
  from typing import List, Union
  from parlai.core.build_data import modelzoo_path
  from parlai.core.loader import load_agent_module
  from parlai.core.loader import register_agent
  from parlai.core.message import Message
  from parlai.core.opt import Opt
  from parlai.utils.misc import warn_once
  import parlai.utils.logging
  from parlai.utils.io import PathManager
label_desc: Use image node_id 6 for calling a global function with example usage: create_agent_from_shared(shared_agent) and returns: a