"""
Handles an :class:`.Attribute` with a :class:`.ForeignKeyValue`.
- :param limit_choices_to: A :class:`Q` object, dictionary, or :class:`.ContentTypeLimiter` to restrict the queryset for the :class:`ForeignKeyAttribute`.
+ :param limit_choices_to: A :class:`Q` object, dictionary, or :class:`ContentTypeLimiter <philo.utils>` to restrict the queryset for the :class:`ForeignKeyAttribute`.
"""
value_class = ForeignKeyValue