Issue 107 return types

[simon-hirsch]

Small MR for aligning return types, see #107

[frazane]

Thanks @simon-hirsch! The reason for not decorating some functions with the lazy wrapper is that they are pre-compiled instead of being compiled the first time they are called. This is done for the most popular metrics, and it was a tradeoff for speeding up import times. Could you revert that specific change?

Also side note: doing this

@lazy_gufunc_wrapper_mv
@guvectorize(
    [
        "void(float32[:], float32[:,:], float32[:])",
        "void(float64[:], float64[:,:], float64[:])",
    ],
    "(d),(m,d)->()",
    cache=True,
)

is redundant because if the types are specified in guvectorize the additional decorator is not necessary.

[simon-hirsch]

Done :)