keras-team
Remove copy of pack_x_y_sample_weight
We are carrying a copy of pack_x_y_sample_weight in this repo that is an exact copy of the current keras nightly behavior, while we wait for https://github.com/keras-team/keras/pull/17233 to make it's way to a stable release.
Once keras 2.12 is widely available (e.g. the default version on colab), we should remove this dependency, and check for tensorflow 2.12 as a minimum version inside setup.py.
Note that it will probably be about half a year till we can actually do this, as colab tends to trail the tensorflow stable releases significantly. This is a small utility, so it is not a major inconvenience to carry our own copy.
We do not want to use the old version as it would pack a single dictionary of input features (with no lables) inside a tuple. Given that dictionaries of features is our most common input, that would mean our feature only output from preprocessing layers would get passed around like ({"token_ids": ...},), which would be both unnecessary and confusing.