id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,active_lock_reason,draft,pull_request,body,reactions,performed_via_github_app,state_reason,repo,type
1824824446,I_kwDOAMm_X85sxJx-,8025,"Support Groupby first, last with flox",2448579,open,0,,,0,2023-07-27T17:07:51Z,2023-07-27T19:08:06Z,,MEMBER,,,,"### Is your feature request related to a problem?

[flox](https://github.com/xarray-contrib/flox) recently added support for first, last, nanfirst, nanlast. So we should support that on the Xarray GroupBy object.
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