code: public void setListeners(java.util.Collection<VirtualRouterListener> listeners) {
          if (listeners == null) {
              this.listeners = null;
              return;
          }
  
          this.listeners = new java.util.ArrayList<VirtualRouterListener>(listeners);
      }
docs: <p>
  The listeners that the virtual router is expected to receive inbound traffic from. Currently only one listener is
  supported per virtual router.
  </p>
  
  @param listeners
  The listeners that the virtual router is expected to receive inbound traffic from. Currently only one
  listener is supported per virtual router.