code: def is_url(url_like):
      if not isinstance(url_like, str):
          return False
      return re.match(_URL_REGEX, url_like) is not None
  
file_path: gluon-cv/gluoncv/auto/data/auto_data.py
imports: import os
  import re
  from pathlib import Path
  import yaml
  from ...utils.download import download
  from ...utils.filesystem import unzip, untar, PathTree
label_desc: Use image node_id 2 for calling a global function with example usage: is_url(url_like) and returns: unknown, False