9-27-23 based on cmacfarl github note (released SDK lacks the assets folder), added notes for Android Studio users to skip the "run as is" section and manually add folder and .tflite file.
9-26-23 restructure all. First run the OpMode "as is" to detect the default/built-in model. Then move on to upload and specify a TFOD model file (here the white Pixel again).
9-25-2023 posted first draft, pending updates to the Sample OpMode. Requested 9-22-2023 by Danny Diaz, intending to work in parallel to correct this Sample (ref. PR 3087).