code: def url_to_tile(url):
          
          info = url.strip('/').split('/')
          name = ''.join(info[-7: -4])
          date = '-'.join(info[-4: -1])
          return name, date, int(info[-1])
docs: Extracts tile name, date and AWS index from tile url on AWS.
  
          :param url: class input parameter 'metafiles'
          :type url: str
          :return: Name of tile, date and AWS index which uniquely identifies tile on AWS
          :rtype: (str, str, int)