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
1532662115,PR_kwDOAMm_X85HWWhx,7437,DRAFT: Implement `open_datatree` in BackendEntrypoint for preliminary DataTree support,3460034,open,0,,,1,2023-01-13T17:17:41Z,2023-07-31T10:09:18Z,,CONTRIBUTOR,,1,pydata/xarray/pulls/7437,"<!-- Feel free to remove check-list items aren't relevant to your change -->

As discussed among folks at today's Pangeo working meeting (cc @jhamman, @TomNicholas), we are looking to try adding support for `DataTree` in the Backend API, so that backend engines can readily add `DataTree` capability. For example, with `cfgrib`, we could have

```python
import xarray as xr

dt = xr.open_datatree(""path/to/gribfile.grib"", engine=""cfgrib"")
```

given that `cfgrib` implements the appropriate method to their `BackendEntrypoint` subclass. Similarly, with NetCDF files or Zarr stores with groups, we could open as `DataTree` to obviate the need to specify a single group. 

Working Design Doc: https://hackmd.io/Oqeab-54TqOOHd5FdCb5DQ?edit

xref https://github.com/ecmwf/cfgrib/issues/327, https://github.com/openradar/xradar/issues/7

- ~~Closes #xxxx~~
- [ ] Tests added
- [ ] User visible changes (including notable bug fixes) are documented in `whats-new.rst`
- [ ] New functions/methods are listed in `api.rst`
","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/7437/reactions"", ""total_count"": 6, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 5}",,,13221727,pull
508171906,MDExOlB1bGxSZXF1ZXN0MzI5MDE3OTU2,3410,Update Terminology page to account for multidimensional coordinates,3460034,closed,0,,,1,2019-10-17T00:52:12Z,2019-10-24T04:25:43Z,2019-10-24T04:25:43Z,CONTRIBUTOR,,0,pydata/xarray/pulls/3410,"As discussed in https://github.com/pydata/xarray/pull/3352, this PR modifies the Terminology page in the docs to briefly address multidimensional coordinates. Sorry for the delay in getting this in!

Also, when attempting to test the doc build, I found that the `doc/environment.yml` file was no longer present, so I updated it to `ci/requirements/doc.yml`.

<!-- Feel free to remove check-list items aren't relevant to your change -->

 - [x] Fully documented, including `whats-new.rst` for all changes and `api.rst` for new API
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