code: def regex(pattern, re_obj=None, maxlen=None):
      return RegexValidator(pattern, re_obj, maxlen)
  
imports: from typing import Union, Dict, Pattern, Callable, Any, List, Optional
  import re
  import logging
label_desc: Use image node_id 6 for calling a global function with example usage: regex(pattern, re_obj, maxlen) and returns: RegexValidator