class_docstr: Add new shells here and below, in SHELL_DICT.
class_docstr_tok: ["Add","new","shells","here","and","below",",","in","SHELL_DICT","."]
code: def __str__(self) -> str:
      return self.value
  
imports: from __future__ import absolute_import, division, print_function
  import json
  import os
  import subprocess
  import tempfile
  from enum import Enum
  from pathlib import Path
  from typing import Any, Dict, List, NamedTuple, NewType, Optional, Union
  from absl import logging
  from blessings import Terminal
  import caliban.config
  import caliban.util
  import caliban.util.fs
  import caliban.util.metrics
label_desc: Use image node_id 1 for calling the Shell obj's underlying member method code with example usage: obj.__str__() and returns: self