Composable transformers or allow for one-hotting of CBN components?

[HarrisonWilde]

Problem Description

Specifically, my question stems from wanting to one hot encode the component part of the result of applying the ClusterBasedNormalizer? My custom generator doesn't deal well with non-one-hotted categoricals and I'd like to change the HyperTransformer / underlying one in an SDV Synthesizer as little as possible? Currently I am defining a second HyperTransformer with OneHotEncoders for all the columns that use ClusterBasedNormalizer and None for all other columns but this is a little tedious / feels suboptimal as a workflow. Looking at the code for the ClusterBasedNormalizer it could make sense to expose a choice to the user as to how components is encoded? Alternatively, making transformers composable through some framework could be a nice addition to the package.

Expected behavior

One of:

• cbn = ClusterBasedNormalizer(..., onehot = True, ...)
• ht = HyperTransformer(); ht.update_transformers({"colname": [ClusterBasedNormalizer(...), OneHotEncoder()]}) o.e.