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I literally didn't change the code, so there was no annotation at all, and it still passed.

I thought that one was an example where you don't have to do anything.

I just went back to check and I saw that you are supposed to make some changes, which are shown in the solution, even though they are unnecessary to pass the tests.

The "any" challenge is special, it's the only one where you don't need to make any changes :)

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