code: def _construct_timeseries(self, timeseries, constraints={}):
          
          self.response_from(timeseries, constraints)
          if self.response == None:
              return None
          return {'data':self.response['data'],
                  'period':self.response['period'],
                  'start time':datetime.datetime.fromtimestamp(self.response['start_time']),
                  'end time':datetime.datetime.fromtimestamp(self.response['end_time'])}
docs: wraps response_from for timeseries calls, returns the resulting dict