def convert_attrs_to_uppercase(obj: Any, attrs: Iterable[str]) -> None:
    """
    Converts the specified attributes of an object to upper case, modifying
    the object in place.
    """
    for a in attrs:
        value = getattr(obj, a)
        if value is None:
            continue
        setattr(obj, a, value.upper())
Converts the specified attributes of an object to upper case, modifying
    the object in place.