[issue38161] AsyncMock add `.awaited` like `.called`

[miss-islington]

Change by miss-islington <mariatta.wijaya+miss-islington at gmail.com>:


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pull_requests: +16065
pull_request: https://github.com/python/cpython/pull/16481

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38161>
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