* feat(after): Add after function
* feat(after): Add after test code
* feat(after): Add after benchmark
* feat(after): Add after docs
* fix(after): should create a function that unc only after being called
calls
* docs(after): change the after function docs
* Apply suggestions from code review
* Apply suggestions from code review
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Co-authored-by: Sojin Park <raon0211@gmail.com>
Co-authored-by: Sojin Park <raon0211@toss.im>