What this snippet does
Async decorators intercept coroutines to add cross-cutting concerns like timing without blocking the event loop.
Expected output
0.1012s
Why practise typing this
Typing decorators (advanced) code builds muscle memory for the symbols and indentation Python uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
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