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
1236316818,PR_kwDOAMm_X8431gAK,6611,"{full,zeros,ones}_like typing",43316012,closed,0,,,2,2022-05-15T15:18:55Z,2022-05-16T18:10:05Z,2022-05-16T17:42:25Z,COLLABORATOR,,0,pydata/xarray/pulls/6611,"(partial) typing for functions `full_like`, `zeros_like`, `ones_like`.

I could not figure out how to properly use TypeVars so many things are ""hardcoded"" with overloads.

I have added a `DTypeLikeSave` to `npcompat`, not sure that this file is supposed to be edited.

Problem1: `TypeVar[""T"", Dataset, DataArray, Variable]` can only be one of these three, but never with `Union[Dataset, DataArray]` which is used in several other places in xarray.
Problem2: The official mypy support says: use `TypeVar[""T"", bound=Union[Dataset, DataArray, Variable]` but the the `isinstance(obj, Dataset)` could not be correctly resolved (is that a mypy issue?).

So if anyone can get it to work with TypeVars, feel free to change it. :)","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/6611/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull
1234229210,PR_kwDOAMm_X843u7hK,6601,change polyval dim ordering,43316012,closed,0,,,1,2022-05-12T16:30:44Z,2022-05-16T18:10:03Z,2022-05-12T19:01:59Z,COLLABORATOR,,0,pydata/xarray/pulls/6601,"<!-- Feel free to remove check-list items aren't relevant to your change -->

- [x] Closes #6600
- [x] Tests added","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/6601/reactions"", ""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull