Elementor\Element_Base::get_controls PHP Method

    public final function get_controls($control_id = null)
    {
        $stack = Plugin::instance()->controls_manager->get_element_stack($this);
        if (null === $stack) {
            $this->_init_controls();
            return $this->get_controls();
        }
        return self::_get_items($stack['controls'], $control_id);
    }