1def type_check(in_or_out):
 2    def types(*expected_types):
 3        def decorator(func):
 4            def wrapper(*args, **kwargs):
 5                if in_or_out == "in":
 6                    for arg in args:
 7                        if not any(type(arg) == expected_type for expected_type in expected_types):
 8                            expected_type_str = ", ".join(str(expected_type) for expected_type in expected_types)
 9                            print(f"Invalid input arguments, expected {expected_type_str}!")
10                            break
11                result = func(*args, **kwargs)
12                if in_or_out == "out":
13                    if not any(type(result) == expected_type for expected_type in expected_types):
14                        expected_type_str = ", ".join(str(expected_type) for expected_type in expected_types)
15                        print(f"Invalid output value, expected {expected_type_str}!")
16
17                return result
18
19            return wrapper
20
21        return decorator
22
23    return types