Major Features and Improvements
Bug fixes and other small changes
* Implement `get_config` and `from_config` methods for losses, kernels and
MinDiffModel register classes as keras objects.
Breaking changes
* (Minor) Change output of `test_step` to not include `min_diff_loss` metric if
`min_diff_data` is not included.
* (Minor) Ensure that MinDiffModel metric has a unique name. In the case of a
collision, the name will be changed to "min_diff_loss_N" for the lowest N
(starting at 1) that makes it unique.
Deprecations