code: func (o *MockOrderer) EnqueueForSendDeliver(value interface{}) {
  	switch value.(type) {
  	case common.Status:
  		o.DeliveryQueue <- value
  	case *common.Block:
  		o.DeliveryQueue <- value
  	case error:
  		o.DeliveryQueue <- value
  	default:
  		panic(fmt.Sprintf("Value not *common.Block nor error: %+v", value))
  	}
  }
docs: // EnqueueForSendDeliver enqueues a mock value (block or error) for delivery