constructor(type, message) {
    this.status = 200;
    this.info = "This is an automated server notification";
    this.message = message;
    this.type = type;
    this.node = global.kuzzle.id;
  }
Creates a notification response from a given room, request object, and content.

@class ServerNotification
@param {Request} request - the request object from which the notification is issued
@param {string} type - Notification type
@param {string} message - Notification message