registerSocketIOListeners(listeners) {
    listeners = listeners || this.socketIOListeners;

    this.yggdrasil.socketIOListeners = this.yggdrasil.socketIOListeners.concat(listeners);
  }
/**
   * Register some specific socketIO listeners for this repository
   * They will be added to each socket during connection
   * @param listeners
   */
Register some specific socketIO listeners for this repository
They will be added to each socket during connection
@param listeners
Register some specific socketIO listeners for this repository They will be added to each socket during connection @param listeners
registerSocketIOListeners(listeners) {
    listeners = listeners || this.socketIOListeners;
    this.yggdrasil.socketIOListeners = this.yggdrasil.socketIOListeners.concat(listeners);
  }
registerSocketIOListeners ( listeners ) { listeners = listeners || this . socketIOListeners ; this . yggdrasil . socketIOListeners = this . yggdrasil . socketIOListeners . concat ( listeners ) ; }
Register some specific socketIO listeners for this repository
 They will be added to each socket during connection
 @param listeners
Register some specific socketIO listeners for this repository They will be added to each socket during connection @param listeners