Exclude page from BE Subpages Widget

functions.php

<?php
add_filter('be_subpages_widget_args', 'bgcmn_subpages_widget_args');
/**
 * Exclude page from Subpages Widget.
 *
 * @param array $args Array of arguments.
 * @param array Modified array of arguments for get_pages().
 */
function bgcmn_subpages_widget_args($args)
{

    // Build a menu listing top level parent's children
    $args['exclude']     = '295';

    return $args;
}
?>