Tor-Arne Nordmo

Sure, I'll take a look 👍

@IvanUkhov I am getting a few errors (might be due to old test code): ``` opt = CumulativeAdam() # compile model model.compile( optimizer=opt, loss=tf.keras.losses.CategoricalCrossentropy(), metrics=["acc"], run_eagerly=False, ) # train model...

Nice! I'll test it now 👍 Edit: It seems to work! It is training, but I'll do some more tests just to make sure everything is good.