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/5208#issuecomment-824927779,https://api.github.com/repos/pydata/xarray/issues/5208,824927779,MDEyOklzc3VlQ29tbWVudDgyNDkyNzc3OQ==,2448579,2021-04-22T15:10:53Z,2021-04-22T15:10:53Z,MEMBER,"``` 
# Creating a Dataset
ds = xr.Dataset(
    { ""aa"": ([""time"",], aa),  },
    coords={""time"": ([""time"",], time), },   ) 
```

This syntax recreates the DataArray `aa`. Since you don't provide attributes in `([""time"",], aa)`, the resulting DataArray has no attributes

Instead try
```
ds = xr.Dataset({""aa"": aa})  # works when aa is already a DataArray
```

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