src/ContainerTrait.php
public function add(ViewController ...$elements)
    {
        foreach ($elements as $element) {
            $this->elements[] = $element;
        }

        return $this;
    }
public function add(ViewController ...$elements)
    {
        foreach ($elements as $element) {
            $this->elements[] = $element;
        }

        return $this;
    }
@param ViewController|ViewController[] ...$elements

@return $this|self