**What did you find confusing? Please describe.** The documentation for [`FeatureStoreOutput`](https://sagemaker.readthedocs.io/en/stable/api/training/processing.html#sagemaker.processing.FeatureStoreOutput) says ``` feature_group_name = None ``` It doesn't contain any type hint / type annotation for the `feature_group_name`. It's not clear for example if I can use a PipelineVariable for this. **Describe how documentation can be improved** Include type hint for `FeatureStoreOutput.feature_group_name` clearly specifying if it's `str`, `Optional[str]` , `Union[str,PipelineVariable]` , etc. **Additional context** Add any other context or screenshots about the documentation request here.