DeepSpeed

7d9a2f2b - Improve leaf module interface (enable via config, relax matching criteria, add document, etc.) (#7604)

Improve leaf module interface (enable via config, relax matching criteria, add document, etc.) (#7604) This PR improves the usability of the leaf module feature. Here are the changes: - Allow enabling the leaf module via both the DeepSpeed config and APIs. - Relax matching criteria to support class-based matching. - Support multiple ways of specifying the target module: class, class name (with or without package name), module name, or suffix. - Add documentation to the training guide, including config snippets and explanations of default behavior. - Add default classes (e.g., Mixtral, Qwen2/Qwen3) that automatically enable the leaf module feature. (Welcoming requests to add more classes) --------- Signed-off-by: Masahiro Tanaka <mtanaka@anyscale.com> Co-authored-by: Olatunji Ruwase <tunji.ruwase@snowflake.com>