code: def get_help(key: str) -> str:
      """Get the help string from a parser for a given key.
      If e.g. 'resource_group' is provided, we return
      the entry for '--resource-group'."""
      key = "--" + key
      key = key.replace("_", "-")
      if key not in PARSER_HELP.keys():
          raise ValueError(f"Key {key} not found in parser.")
      return PARSER_HELP.get(key).help
  
imports: import argparse
  from dataclasses import dataclass
  from enum import Enum
  import os.path
  import tempfile
  import typer
  from typing import Optional
  import requests
  from ray.tune.experiment.config_parser import _make_parser
  from ray.tune.result import DEFAULT_RESULTS_DIR
label_desc: Use image node_id 4 for calling a global function with example usage: get_help(key) and returns: PARSER_HELP