[error] invalid-argument-type - Method `__getitem__` of type `bound method dict[str, (Overload[(i: SupportsIndex, /) -> ChecksumAddress, (s: slice[SupportsIndex | None, SupportsIndex | None, SupportsIndex | None], /) -> list[ChecksumAddress]]) | ((key: ChecksumAddress, /) -> ChecksumAddress)].__getitem__(key: str, /) -> (Overload[(i: SupportsIndex, /) -> ChecksumAddress, (s: slice[SupportsIndex | None, SupportsIndex | None, SupportsIndex | None], /) -> list[ChecksumAddress]]) | ((key: ChecksumAddress, /) -> ChecksumAddress)` cannot be called with key of type `Unknown` on object of type `dict[str, (Overload[(i: SupportsIndex, /) -> ChecksumAddress, (s: slice[SupportsIndex | None, SupportsIndex | None, SupportsIndex | None], /) -> list[ChecksumAddress]]) | ((key: ChecksumAddress, /) -> ChecksumAddress)]`