[AsyncStreaming] How can we tell whether the span in `collect(upTo:body:)` is truncated or not?

[guoye-zhang]

Conceptually, I consider collect a once-and-done operation, and the limit is a hard memory limit to not go past. It should throw an error if the full data exceeds the limit. Currently the data is silently truncated.

[FranzBusch]

Just to clarify you mean the collect on the AsyncReader or the ConcludingAsyncReader?

[guoye-zhang]

I'm talking about both. I don't think they should have distinct behaviors.