code: def set_column_width(monkeypatch: pytest.MonkeyPatch) -> None:
      """
      Force terminal width to 80: some tests check the formatting of --help, which is sensible
      to terminal width.
      """
      monkeypatch.setenv("COLUMNS", "80")
  
file_path: pytest/testing/conftest.py
imports: import dataclasses
  import re
  import sys
  from typing import Generator
  from typing import List
  import pytest
  from _pytest.monkeypatch import MonkeyPatch
  from _pytest.pytester import Pytester
label_desc: Use image node_id 1 for calling a global function with example usage: set_column_width(monkeypatch) without return types