public function create($friendlyName, $options = array()) {
        $options = new Values($options);

        $data = Values::of(array(
            'FriendlyName' => $friendlyName,
            'ActivitySid' => $options['activitySid'],
            'Attributes' => $options['attributes'],
        ));

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

        return new WorkerInstance($this->version, $payload, $this->solution['workspaceSid']);
    }