grpc/streambuffer/streambuffer.go
func (s *Stream) Stats() (sent, dropped uint64) {
	return atomic.LoadUint64(&s.sent), atomic.LoadUint64(&s.dropped)
}
func (s *Stream) Stats() (sent, dropped uint64) {
	return atomic.LoadUint64(&s.sent), atomic.LoadUint64(&s.dropped)
}
// Stats of the stream