`tuple` is not implemented for tuples...?

[9999years]

tuple[] is only implemented for variable-length homogeneous tuples, better known as lists:

    6: error: `tuple[]` is implemented only for `tuple[T, ...]`
          --> prelude/haskell/compile.bzl:760:40
           |
       760 |         direct_deps_by_name: dict[str, tuple[Artifact | None, DynamicValue]],
           |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
           |