How to identify each returned Item?

[JackKelly]

See issue #26 for a previous version of this idea.

Perhaps we just have a struct Item<T> {output: Output, user_identifier: T}? But how to associate each returned byte_range with the overall GetRanges? Just include an Arc<GetRanges>?

See my latest thoughts about what the user code would look like in this comment.

[JackKelly]

This is largely answered in this code sketch: https://github.com/JackKelly/light-speed-io/blob/new-design-March-2024/src/new_design_march_2024.rs