/**
* @param ItemInterface $child
* @return $this
*/
public function addChild($child)
{
return parent::addChild($child);
}
/**
* Construct.
*
* @param array $attributes Html attributes.
*/
public function __construct(array $attributes = array())
{
$attributes = array_merge_recursive(array('class' => array('btn', 'dropdown-toggle'), 'data-toggle' => 'dropdown'), $attributes);
$this->toggle = new Button();
parent::__construct($attributes);
}