public function swipe($xSpeed, $ySpeed)
    {
        $this->webDriver->getDriver()->curl(
            $this->webDriver->getDriver()->factoryCommand(
                'touch/flick',
                WebDriver_Command::METHOD_POST,
                [
                    'xspeed' => (int) $xSpeed,
                    'yspeed' => (int) $ySpeed,
                ]
            )
        );
        return $this;
    }