old_contents: from datetime import datetime
  
  def json_serial(obj):
      """JSON serializer for objects not serializable by default json code"""
  
      if isinstance(obj, datetime):
          serial = obj.isoformat()
          return serial
      raise TypeError ("Type not serializable")
  
  
  def parse_url(url, *args, **kwargs):
      pass
new_contents: from datetime import datetime
  
  
  def json_serial(obj):
      """JSON serializer for objects not serializable by default json code"""
  
      if isinstance(obj, datetime):
          serial = obj.isoformat()
          return serial
      raise TypeError("Type not serializable")
  
  
  def parse_url(url, *args, **kwargs):
      pass
  
  
  def subdomain(path, host):
      return path + '.' + host
  
subject: update utils module