code: def _format(
      fields_str: List[str],
      indent: int,
      width: int,
      curr_indent: int,
      start: str,
      end: str,
  ) -> str:
      delimiter, curr_indent_str = "", ""
      # if it exceed the max width then we place one element per line
      if len(repr(fields_str)) >= width:
          delimiter = "\n"
          curr_indent_str = " " * curr_indent
  
      indent_str = " " * indent
      body = f", {delimiter}{curr_indent_str}".join(fields_str)
      return f"{start}{indent_str}{body}{end}"
  
imports: import contextlib
  import functools
  import hashlib
  import os
  import re
  import sys
  import textwrap
  from argparse import Namespace
  from dataclasses import fields, is_dataclass
  from enum import auto, Enum
  from typing import Any, Callable, Dict, Generic, Iterable, Iterator, List, Literal, NoReturn, Optional, Sequence, Set, Tuple, TypeVar, Union
  from typing_extensions import Self
  from torchgen.code_template import CodeTemplate
label_desc: Use image node_id 13 for calling a global function with example usage: _format(fields_str, indent, width, curr_indent, start, end) and returns: start, indent_str, body, end