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
1119647191,I_kwDOAMm_X85CvHXX,6220,[FEATURE]: Use fast path when grouping by unique monotonic decreasing variable,2448579,open,0,,,1,2022-01-31T16:24:29Z,2023-01-09T16:48:58Z,,MEMBER,,,,"### Is your feature request related to a problem?

See https://github.com/pydata/xarray/pull/6213/files#r795716713

We check whether the `by` variable for groupby is unique and monotonically increasing. But the fast path would also apply to unique and monotonically decreasing variables.

### Describe the solution you'd like

Update the condition to `is_monotonic_increasing or is_monotonic_decreasing` and add a test.

### Describe alternatives you've considered

_No response_

### Additional context

_No response_","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/6220/reactions"", ""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,issue
1119738354,I_kwDOAMm_X85Cvdny,6222,test packaging & distribution,2448579,closed,0,,,4,2022-01-31T17:42:40Z,2022-02-03T15:45:17Z,2022-02-03T15:45:17Z,MEMBER,,,,"### Is your feature request related to a problem?

It seems like we should have a test to make sure our dependencies are specified correctly.


### Describe the solution you'd like


For instance we could add a step to the release workflow:
https://github.com/pydata/xarray/blob/b09de8195a9e22dd35d1b7ed608ea15dad0806ef/.github/workflows/pypi-release.yaml#L34-L43

after `twine check` where we pip install and then try to import xarray.

Alternatively we could have another test config in our regular CI to build + import.

Thoughts? Is  this excessive for a somewhat rare problem?

### Describe alternatives you've considered

_No response_

### Additional context

_No response_","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/6222/reactions"", ""total_count"": 2, ""+1"": 2, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed,13221727,issue