Sample code? Use Oauth 2.0 to draw single map image layer or feature service from Portal ADFS?

[AmyKlug]

Just looking for code samples on how to put these two pieces together

https://developers.arcgis.com/javascript/latest/sample-code/identity-oauth-basic/

https://developers.arcgis.com/javascript/latest/sample-code/layers-mapimagelayer/