[wodenokoto]

I think the complaint is that you are using `bool` as a `all()` call on your Arrays.

If you used `all()` in your implementation instead, you could be compatible with the idiomatic use of `bool(my_list)` and the _very_ common `if my_list:` structure could be used with Arrays too (like most people probably would expect from a "better list type")

Regardless, Pandas struggles with the same problem, so you are at least in good company :)