code: def test_line_unicode(self, tw) -> None:
      msg = "b\u00f6y"
      tw.line(msg)
      lines = tw.getlines()
      assert lines[0] == msg + "\n"
  
imports: import io
  import os
  import re
  import shutil
  import sys
  from pathlib import Path
  from typing import Generator
  from typing import Optional
  from unittest import mock
  import pytest
  from _pytest._io import terminalwriter
  from _pytest.monkeypatch import MonkeyPatch
label_desc: Use image node_id 3 for calling the TestTerminalWriter obj's underlying member method code with example usage: obj.test_line_unicode(tw) without return types