public function enqueue($name = null, $attributes = array()) {
        return $this->nest(new Voice\Enqueue($name, $attributes));
    }
public function enqueue($name = null, $attributes = array()) {
        return $this->nest(new Voice\Enqueue($name, $attributes));
    }
public function enqueue ( $ name = null , $ attributes = array ( ) ) { return $ this -> nest ( new Voice \ Enqueue ( $ name , $ attributes ) ) ; }
Add Enqueue child.

@param string $name Friendly name
@param array $attributes Optional attributes
@return TwiML Child element.
Add Enqueue child .