Can PL/PGSQL function return multiple SETOFs

[<cyw@xxxxxxx>]

Is something like this possible?
CREATE testsetof( IN toad_id integer)   RETURNS SETOF road_table, SETOF int4 
AS $BODY$....

If yes, is this the way to do 'RETURN NEXT'?
   RETURN NEXT road_table_row, an_integer;

Thanks
CYW 



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