do_action( 'update_postmeta', int $meta_id, int $object_id, string $meta_key, mixed $meta_value )

314			 * @param int    $meta_id    ID of metadata entry to update.315			 * @param int    $object_id  Post ID.316			 * @param string $meta_key   Metadata key.317			 * @param mixed  $meta_value Metadata value. This will be a PHP-serialized string representation of the value318			 *                           if the value is an array, an object, or itself a PHP-serialized string.319			 */320			do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );321		}322	}323 324	$result = $wpdb->update( $table, $data, $where );325	if ( ! $result ) {326		return false;