code: def com_google_fonts_check_ots(font):
    
    import ots
  
    try:
      process = ots.sanitize(font, check=True, capture_output=True)
    except ots.CalledProcessError as e:
      yield FAIL, (
        "ots-sanitize returned an error code ({}). Output follows:\n\n{}{}"
      ).format(e.returncode, e.stderr.decode(), e.stdout.decode())
    else:
      if process.stderr:
        yield WARN, (
          "ots-sanitize passed this file, however warnings were printed:\n\n{}"
        ).format(process.stderr.decode())
      else:
        yield PASS, "ots-sanitize passed this file"
docs: Checking with ots-sanitize.