Add seed kwarg to the tutorial scatter dataset (#6184)
Add seed kwarg to the tutorial scatter dataset (#6184)

* Add seed kwarg to scatter example dataset

* docstring

* A little typing

* mypy found issues

* doc changes, list to dict

* Update tutorial.py
jhamman/xarray,markelg/xray,markelg/xray,jhamman/xarray,pydata/xarray,markelg/xray,pydata/xarray,jhamman/xarray,pydata/xarray