code: func NewMockDeliverServerWithDeliveries(d <-chan *cb.Block) *MockDeliverServer {
  	return &MockDeliverServer{
  		status:     cb.Status_UNKNOWN,
  		deliveries: d,
  	}
  }
docs: // NewMockDeliverServerWithDeliveries returns a new MockDeliverServer using Deliveries channel with common.Block