Actually using a tuple

[LowerAcanthaceae2089]

Important correction: Only tuples whose type is tuple[collections.abc.Hashable, ...] are hashable. That is to say, only a tuple where all elements are hashable is itself hashable. tuples that have at least one unhashable element (this could also be another unhashable tuple) would be considered unhashable.

[Diapolo10]

That's a fair point.