implement transform_env

[dietmarkuehl]

Implement std::execution::transform_env.

[JorgeV92]

Hello @dietmarkuehl I was browsing the issues and saw that tranform_env still needs to be implemented and I was looking at documentation and information on transform_env was wondering if I can be assign to work on this. I saw that transform_sender is implemented and I was using this as a reference to how I can get started with transform_env.

[dietmarkuehl]

Hello @JorgeV92
I should really look through the open issues: at the Croydon meeting one of the papers which was landed is P3826R5: I believe that paper actually removes transform_env! Looking at the code, it seems it currently [still] uses transform_env(although I oddly don't see a corresponding header).

[JorgeV92]

@dietmarkuehl I was curious about transform_env and I do see the paper mention the removable of it. So then I can focus on parallel_scheduler this is functionality that still needs to be implemented in beman.execution correct?