<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _get_list_related_field( self, field, filter_rel_field, page=None, page_size=None ):
 """ Return a list of values for a related field :param field: Marshmallow field :param filter_rel_field: Filters for the related field :param page: The page index :param page_size: The page size :return: (int, list) total record count and list of dict with id and value """

        ret = list()
        if isinstance(field, Related) or isinstance(field, RelatedList):
            datamodel = self.datamodel.get_related_interface(field.name)
            filters = datamodel.get_filters(datamodel.get_search_columns_list())
            page, page_size = self._sanitize_page_args(page, page_size)
            order_field = self.order_rel_fields.get(field.name)
            if order_field:
                order_column, order_direction = order_field
            else:
                order_column, order_direction = "", ""
            if filter_rel_field:
                filters = filters.add_filter_list(filter_rel_field)
            count, values = datamodel.query(
                filters, order_column, order_direction, page=page, page_size=page_size
            )
            for value in values:
                ret.append({"id": datamodel.get_pk_value(value), "value": str(value)})
        return count, ret