public function get_functions()
{
$data = [];
foreach (_class('core_api')->get_functions() as $name) {
$data[++$i] = [
'name' => $name,
'link' => './?object=' . __CLASS__ . '&action=get_function_source&id=' . $name,
];
}
return _class('html')->tree($data, [
'opened_levels' => 0,
'draggable' => false,
]);
}