AtticusBeachy

I added "fourier" as a key in the global dictionary of custom objects, as described [here](https://www.tensorflow.org/api_docs/python/tf/keras/utils/get_custom_objects): ```python # add fourier function to global dictionary of custom objects get_custom_objects()["fourier"] = Activation(fourier)...

Thanks for the help! That solution works well for the minimal example, but is not as clean for my actual code. I have it working now though, even if it's...