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/1533#issuecomment-537398310,https://api.github.com/repos/pydata/xarray/issues/1533,537398310,MDEyOklzc3VlQ29tbWVudDUzNzM5ODMxMA==,6213168,2019-10-02T08:46:45Z,2019-10-02T08:46:45Z,MEMBER,"Still valid in xarray 0.13

```python
import xarray
import numpy
import dask.array

def kernel():
    print(""Kernel invoked!"")
    return numpy.array([100, 200])

data = dask.array.Array(name='foo', dask={('foo', 0): (kernel, )}, chunks=((2,),), dtype=float)
ds = xarray.Dataset(coords={'z': ('z', data)})
```
output:
```
Kernel invoked!
Kernel invoked!
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,253395960