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Affects user API (concrete verbs, operations, analysis syntax)

Affects a backend (translations, old or new implementations)

Affects the core developer library (siu, translation backend, dispatchers, symbolics)

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High level collection of issues, which enable something useful.

Good for newcomers

Extra attention is needed

This doesn't seem right

Further information is requested

This will not be worked on

api, be, core, impact, time, type

Pandas fast grouped methods