Update bank.py

bank.py

@@ -95,7 +95,7 @@ features_types_per_config = {
         "has_housing_loan": datasets.Value("bool"),
         "has_personal_loan": datasets.Value("bool"),
         "month_of_last_contact": datasets.Value("string"),
-        "number_of_calls_in_ad_campaign": datasets.Value("string"),
+        "number_of_calls_in_ad_campaign": datasets.Value("int8"),
         "days_since_last_contact_of_previous_campaign": datasets.Value("int16"),
         "number_of_calls_before_this_campaign": datasets.Value("int16"),
         "successful_subscription": datasets.ClassLabel(num_classes=2, names=("no", "yes")),