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 785997226,MDExOlB1bGxSZXF1ZXN0NTU0OTM4NDQ2,4809,"Remove the references to `_file_obj` outside low level code paths, change to `_close`",226037,closed,0,,,3,2021-01-14T13:40:25Z,2021-01-18T15:19:35Z,2021-01-18T15:19:35Z,MEMBER,,0,pydata/xarray/pulls/4809,"- [x] Related to #4309 - [x] No tests added, all tests passing - [x] Passes `pre-commit run --all-files` - [x] User visible changes (including notable bug fixes) are documented in `whats-new.rst` - [x] No new functions/methods are listed in `api.rst` You can now pass a `close` argument to `xr.Dataset` that closes the backend resources. This is only useful to backend developers, we need to add the documentation as per #4803 but it may need to be hidden and not documented to end-users. The PR is draft pending some cleanups and the documentation.","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/4809/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull