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
2021528727,PR_kwDOAMm_X85g7vZA,8502,change type of curvefit's p0 and bounds to mapping,43316012,closed,0,,,0,2023-12-01T20:18:19Z,2023-12-02T13:08:50Z,2023-12-01T22:02:38Z,COLLABORATOR,,0,pydata/xarray/pulls/8502,"<!-- Feel free to remove check-list items aren't relevant to your change -->

- [x] User visible changes (including notable bug fixes) are documented in `whats-new.rst`

Mini PR to improve the typing of curvefit.
Using `dict` is problematic since it is invariant, while Mapping is `covariant`.","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/8502/reactions"", ""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull
2021517557,PR_kwDOAMm_X85g7s9a,8501,Update to mypy1.7,43316012,closed,0,,,1,2023-12-01T20:08:46Z,2023-12-02T13:08:45Z,2023-12-01T22:02:21Z,COLLABORATOR,,0,pydata/xarray/pulls/8501,"<!-- Feel free to remove check-list items aren't relevant to your change -->

- [x] Closes #8448
- [x] Tests added
- [x] User visible changes (including notable bug fixes) are documented in `whats-new.rst`

I guess we update manually for now?","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/8501/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull