protected function getField($key)
    {
        return !empty($this->response[$key]) ? $this->response[$key] : null;
    }
protected function getField($key)
    {
        return !empty($this->response[$key]) ? $this->response[$key] : null;
    }
protected function getField ( $ key ) { return ! empty ( $ this -> response [ $ key ] ) ? $ this -> response [ $ key ] : null ; }
Helper for getting user data

@param string $key

@return mixed|null
Helper for getting user data