Encore\Admin\Widgets\Form::__call PHP Method

    public function __call($method, $arguments)
    {
        if ($className = static::findFieldClass($method)) {
            $name = array_get($arguments, 0, '');
            $element = new $className($name, array_slice($arguments, 1));
            $this->pushField($element);
            return $element;
        }
    }