Output.all with multiple types throws mypy error about needing an object about pulumi

[justinvp]

From internal discussion, sounds like we'll likely want to add overloads up to a certain number of arguments to better model this for type checkers.

[julienp]

I don't think this is possible, because Output returns a list, but you can't have something like list[T1, T2, T3]. List assumes all elements are of the same type.

To have different types we need to return a tuple, but I think that would be a breaking change.

Here's an example of typing it using tuple return pyright playground

[julienp]

Our best option might be to weaken the all types to better match reality d0ce289