code: def head(item: typing.Tuple[str, typing.Any]) -> str:
      return item[0].lower()
  
imports: import os
  import re
  import typing
  from dataclasses import dataclass, field
  from shutil import copy, rmtree
  import swagger_parser
  from typing_extensions import Literal, assert_never
label_desc: Use image node_id 1 for calling a global function with example usage: head(item) and returns: item