code: def get_result(self):
          
          result = get_json_from_remote_server(self.call)
          if result:
              date, value = max(result.iteritems(), key=itemgetter(1))
              return {'date': date, 'users': value}
          else:
              return {'date': "No Data", 'users': 0}
docs: Perform the call and return the peak date and how many users