SQL - Remove every row in a table using DELETE instead of TRUNCATE

nuke.sql

CREATE OR REPLACE FUNCTION nuke() RETURNS void AS $$
DECLARE stmt text;
BEGIN
    SELECT 'WITH ' || string_agg('_' || table_name || ' AS (DELETE FROM ' || table_name || ')', ', ') || ' SELECT 1'
      FROM information_schema.tables
     WHERE table_schema = 'public'
           AND table_type <> 'VIEW'
      INTO stmt;

    EXECUTE stmt;
END$$
LANGUAGE plpgsql;