protected function registerBridge()
    {
        // Bind WatsonBridge for Personality insights that we depend on.
        $this->app->bind('PIBridge', function (Application $app) {
            // Get Default Credentials.
            $credentials = $app->make(AccessManager::SERVICE_ID)->getCredentials();

            // Return an Instance of Bridge.
            return new Bridge($credentials['username'], $credentials['password'], $credentials['url']);
        });
    }