XGBoost Documentation — xgboost 1.7.2 documentation XGBoost Documentation — xgboost 1.7.2 documentation © Copyright 2022, xgboost developers. Revision 62ed8b5f. xgboost.readthedocs.io Python API Reference — xgboost 2.0.0-dev documentation Python API Reference — xgboost 2.0.0-dev documentation interaction_constraints (Optional[Union[str, List[Tuple[str]]]]) – Constraints for interaction represent..