void pq\Gateway\Table::notify([pq\Gateway\Row $row = NULL[, string $event = NULL[, array &$criteria = NULL]]])Implements SplSubject.
NULLstring $event# = NULLarray &$criteria# = NULLNOTE:
All these params will be passed through to the table's observers after the table itself.
<?php
$observer->update($table, $row, $event, $criteria);
?>