Note

From Ray 2.6.0 onwards, RLlib is adopting a new stack for training and model customization, gradually replacing the ModelV2 API and some convoluted parts of Policy API with the RLModule API. Click here for details.

Note

This doc is related to the RLModule API and therefore experimental.

Catalog API

Basic usage

Use the following basic API to get a default encoder or action distribution out of Catalog. To change the catalog behavior, modify the following methods. Algorithm-specific implementations of Catalog have additional methods, for example, for building heads.

Advanced usage

The following methods and attributes are used internally by the Catalog to build the default models. Only override them when you need more granular control.