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
230566456,MDExOlB1bGxSZXF1ZXN0MTIxODk5MjA2,1421,Adding arbitrary object serialization,2941720,open,0,,,8,2017-05-23T01:59:37Z,2022-06-09T14:50:17Z,,CONTRIBUTOR,,0,pydata/xarray/pulls/1421,"This adds support for object serialization using the netCDF4-python backend..

Minimum working (at least appears to..) example, no tests yet.

I added `allow_object` kwarg (rather than `allow_pickle`, no reason to firmly attach pickle to the api, could use something else for other backends).

This is now for:

- `to_netcdf`
- `AbstractDataStore` (a `True` value raises `NotImplementedError` for everything but `NetCDF4DataStore`)
- `cf_encoder` which when `True` alters its behaviour to allow `dtype('O')` through.

`NetCDF4DataStore` handles this independently from the cf_encoder/decoder.  The dtype support made it hard to decouple, plus I think object serialization is a backend dependent issue.

There's a lot of potential for refactoring, just pushed this to get opinions about whether this
was a reasonable approach - I'm relatively new to open source, so would appreciate any constructive feedback/criticisms! 


 - [ ] Closes #xxxx
 - [ ] Tests added / passed
 - [ ] Passes ``git diff upstream/master | flake8 --diff``
 - [ ] Fully documented, including `whats-new.rst` for all changes and `api.rst` for new API

^ these will come later!","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/1421/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull
230168414,MDExOlB1bGxSZXF1ZXN0MTIxNjMxODUz,1416,Moved register_dataset_accessor examples docs to appropriate docstring,2941720,closed,0,,,1,2017-05-20T17:43:25Z,2017-05-21T20:18:10Z,2017-05-21T20:18:10Z,CONTRIBUTOR,,0,pydata/xarray/pulls/1416,"Just noticed this when reading through the code - VERY minor.

The Examples docstring for register_dataarray_accessor referred
to register_dataset_accessor instead.  Moved the example to
register_dataset_accessor.

 - [ ] Closes #xxxx
 - [ ] Tests added / passed
 - [ ] Passes ``git diff upstream/master | flake8 --diff``
 - [ ] Fully documented, including `whats-new.rst` for all changes and `api.rst` for new API

^ hopefully don't need to fill these in","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/1416/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull