code: def time_range(self, start, end):
          
          self._set_query(self.time_query, time_start=self._format_time(start),
                          time_end=self._format_time(end))
          return self
docs: Add a request for a time range to the query.
  
          This modifies the query in-place, but returns `self` so that multiple queries
          can be chained together on one line.
  
          This replaces any existing temporal queries that have been set.
  
          Parameters
          ----------
          start : datetime.datetime
              The start of the requested time range
          end : datetime.datetime
              The end of the requested time range
  
          Returns
          -------
          self : DataQuery
              Returns self for chaining calls