code: def _contains_non_numeric_chars(s):
      for char in s:
          if char in ("_", ":"):
              return True
      return False
  
imports: import logging
  import os
  import re
  import yaml
  from guild import util
  from guild import yaml_util
label_desc: Use image node_id 28 for calling a global function with example usage: _contains_non_numeric_chars(s) and returns: False, True