code: def GetSqlValuesTuple(self, trip_id):
      
  
      result = []
      for fn in self._SQL_FIELD_NAMES:
        if fn == 'trip_id':
          result.append(trip_id)
        else:
          # Since we'll be writting to SQLite, we want empty values to be
          # outputted as NULL string (contrary to what happens in
          # GetFieldValuesTuple)
          result.append(getattr(self, fn))
      return tuple(result)
docs: Return a tuple that outputs a row of _FIELD_NAMES to be written to a
         SQLite database.
  
      Arguments:
          trip_id: The trip_id of the trip to which this StopTime corresponds.
                   It must be provided, as it is not stored in StopTime.