public function update($url, $method) {
        $data = Values::of(array('Url' => $url, 'Method' => $method, ));

        $payload = $this->version->update(
            'POST',
            $this->uri,
            array(),
            $data
        );

        return new MemberInstance(
            $this->version,
            $payload,
            $this->solution['accountSid'],
            $this->solution['queueSid'],
            $this->solution['callSid']
        );
    }