code: def is_url(input_url):
      """
      Check if an input string is a url. look for http(s):// and ignoring the case
      """
      is_url = (
          re.match(r"^(?:http)s?://", input_url, re.IGNORECASE)
          is not None
      )
      return is_url
  
imports: import json
  import logging
  import os
  import pickle
  import re
  import shutil
  import time
  from urllib.parse import urlparse
  import numpy
  import pandas
  import yaml
  from iopath.common.download import download
  from iopath.common.file_io import file_lock, g_pathmgr
  from vissl.utils.slurm import get_slurm_dir
label_desc: Use image node_id 7 for calling a global function with example usage: is_url(input_url) and returns: is_url