code: def CheckVlogArguments(filename, clean_lines, linenum, error):
    
    line = clean_lines.elided[linenum]
    if Search(r'\bVLOG\((INFO|ERROR|WARNING|DFATAL|FATAL)\)', line):
      error(filename, linenum, 'runtime/vlog', 5,
            'VLOG() should be used with numeric verbosity level.  '
            'Use LOG() if you want symbolic severity levels.')
docs: Checks that VLOG() is only used for defining a logging level.
  
    For example, VLOG(2) is correct. VLOG(INFO), VLOG(WARNING), VLOG(ERROR), and
    VLOG(FATAL) are not.
  
    Args:
      filename: The name of the current file.
      clean_lines: A CleansedLines instance containing the file.
      linenum: The number of the line to check.
      error: The function to call with any errors found.