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 892421264,MDExOlB1bGxSZXF1ZXN0NjQ1MTI4NjQ4,5315,Use _unstack_once for valid dask and sparse versions,14371165,closed,0,,,9,2021-05-15T11:42:57Z,2021-05-18T18:13:50Z,2021-05-17T22:49:18Z,MEMBER,,0,pydata/xarray/pulls/5315," - [x] Requires #5314 - [x] Passes `pre-commit run --all-files` ","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/5315/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull 892411608,MDExOlB1bGxSZXF1ZXN0NjQ1MTIxMzQ0,5314,Add version variable for optional imports in pycompat,14371165,closed,0,,,1,2021-05-15T10:43:35Z,2021-05-18T18:13:32Z,2021-05-16T23:50:31Z,MEMBER,,0,pydata/xarray/pulls/5314,It was difficult to do version checks with optional imports so I added variables in pycompat and removed some of the imports I found.,"{""url"": ""https://api.github.com/repos/pydata/xarray/issues/5314/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull