Export kriging as raster

Hello, everyone!
I am following this tutorial here to do kriging to Brazil temperature: https://geostat-framework.readthedocs.io/projects/gstools/en/stable/examples/08_geo_coordinates/01_dwd_krige.html#
I did Universal kriging and plot the map exactly as the code explains. But now I want to export the interpolation result as a raster. How can I do this?

