issues: 1326509734

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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
1326509734 PR_kwDOAMm_X848ikDG 6871 Handle None in assert_valid_xy 14371165 closed 0     3 2022-08-02T23:37:19Z 2022-08-12T08:59:59Z 2022-08-03T22:08:45Z MEMBER   0 pydata/xarray/pulls/6871

Reduce diffs in #6778. * Handle None as the error message suggest should be possible * Add some typing while at it.

mypy noticed that Hashable cannot use ", ".join-method so forcing them to str instead. Should be the same problem in #6856 but Frozen returns Any instead of Hashable for some reason.

 
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