code: def uninstall(self) -> None:
      print("unset hydra_bash_completion")
      print(os.environ.get("_HYDRA_OLD_COMP", ""))
      print("unset _HYDRA_OLD_COMP")
  
file_path: hydra/hydra/_internal/core_plugins/bash_completion.py
imports: import logging
  import os
  import sys
  from typing import Optional
  from hydra.plugins.completion_plugin import CompletionPlugin
label_desc: Use image node_id 2 for calling the BashCompletion obj's underlying member method code with example usage: obj.uninstall() without return types