SensioLabs\Consul\Services\Session::renew PHP Method

    public function renew($sessionId, array $options = array())
    {
        $params = array('query' => OptionsResolver::resolve($options, array('dc')));
        return $this->client->put('/v1/session/renew/' . $sessionId, $params);
    }

 /**
  * @return bool
  */
 public function renew()
 {
     return false !== $this->session->renew($this->sessionId);
 }