html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/1471#issuecomment-433952128,https://api.github.com/repos/pydata/xarray/issues/1471,433952128,MDEyOklzc3VlQ29tbWVudDQzMzk1MjEyOA==,21049064,2018-10-29T15:21:34Z,2018-10-29T15:21:34Z,NONE,"@smartass101 & @shoyer what would be the code for working with a `pandas.MultiIndex` object in this use case? Could you show how it would work related to your example above:
```
Dimensions: (num: 21, ar:2) # <-- note that MB is still of dims {'num': 19} only
Coordinates: # <-- mostly unions as done by concat
* num (num) int64 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
B