id,node_id,number,state,locked,title,user,body,created_at,updated_at,closed_at,merged_at,merge_commit_sha,assignee,milestone,draft,head,base,author_association,auto_merge,repo,url,merged_by
340705676,MDExOlB1bGxSZXF1ZXN0MzQwNzA1Njc2,3526,closed,0,Allow nested dictionaries in the Zarr backend (#3517),3780274,"Closes #3517.

I have tried to touch the minimum code as possible while leaving the defaults as they are now. The code works now by redefining to value to save as a list containing the dictionary. However when writing to disk the the dictionary is saved correctly, without the list (I do not understand 100% how it works but it does so someone double check!).

```
$ cat test.zarr/.zattrs
{
    ""foo"": {
        ""bar"": {
            ""val"": 3
        }
    }
}
```
",2019-11-13T22:51:47Z,2023-09-14T03:04:11Z,2023-09-14T03:04:10Z,,9ed704f870408c778eb008e463c93ba3d3c13048,,,0,5ecde3ce97b41febb8f98dda5b37122f378828da,d1e4164f3961d7bbb3eb79037e96cae14f7182f8,NONE,,13221727,https://github.com/pydata/xarray/pull/3526,