code: def add_filter_by_date(self, query, out_params):
          
          date_query = formatDateQuery(self.context, 'Requested')
          if date_query:
              query['created'] = date_query
              requested = formatDateParms(self.context, 'Requested')
              out_params.append({'title': _('Requested'),
                                 'value': requested,
                                 'type': 'text'})
docs: Applies the filter by Requested date to the search query