added a type hint

hanlde_form_submit.py

@@ -8,7 +8,7 @@ from supported_models import get_supported_model_names
 SUPPORTED_MODEL_NAMES = get_supported_model_names()
 
 
-def create_pipeline(model_name: str, group_size) -> GroupedSamplingPipeLine:
+def create_pipeline(model_name: str, group_size: int) -> GroupedSamplingPipeLine:
     """
     Creates a pipeline with the given model name and group size.
     :param model_name: The name of the model to use.