change: add return typing

Author: evakravi

src/sagemaker/hyperparameters.py

@@ -68,7 +68,7 @@ def validate(
     model_version: Optional[str] = None,
     hyperparameters: Optional[dict] = None,
     validation_mode: Optional[HyperparameterValidationMode] = None,
-):
+) -> None:
     """Validate hyperparameters for models.
 
     Args:

src/sagemaker/jumpstart/validators.py

@@ -25,7 +25,7 @@ def _validate_hyperparameter(
     hyperparameter_name: str,
     hyperparameter_value: Any,
     hyperparameter_specs: List[JumpStartHyperparameter],
-):
+) -> None:
     """Perform low-level hyperparameter validation on single parameter.
 
     Args: