This is packed into the array for a feedback item in the backend. The output is not taken into account, but for example a process can be attached that is only executed if feed.

/**
 * Change the default output feedback item.
 *
 * @param array $item item array with fields, message and more.
 * @return array
 */
function custom_function( $item ) {
	return $item;
}

add_filter( 'helpful_admin_feedback_item', 'custom_function' );