issue_comments: 767565592

This data as json

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/pull/4818#issuecomment-767565592 https://api.github.com/repos/pydata/xarray/issues/4818 767565592 MDEyOklzc3VlQ29tbWVudDc2NzU2NTU5Mg== 10194086 2021-01-26T14:10:01Z 2021-01-26T14:10:01Z MEMBER

Finally figured it out - I had to use python T_DataWithCoords = TypeVar("T_DataWithCoords", bound="DataWithCoords") DataWithCoords is a parent class of Dastaset and DataArray. Now the following works:

```python import xarray as xr

da = xr.DataArray([1]) ds = xr.Dataset(data_vars={"x": da})

reveal_type(da.weighted(da).mean()) # Revealed type is 'xarray.core.dataarray.DataArray' reveal_type(ds.weighted(da).mean()) # Revealed type is 'xarray.core.dataarray.Dataset' ```

 
{
    "total_count": 1,
    "+1": 0,
    "-1": 0,
    "laugh": 0,
    "hooray": 1,
    "confused": 0,
    "heart": 0,
    "rocket": 0,
    "eyes": 0
}
   787502146