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+#-*- coding: utf-8 -*-%0A# pylint: disable=E0102, W0613%0A%22%22%22%0AAdditional functions for django-any%0A%22%22%22%0A%0Adef valid_choices(choices):%0A    for key, value in choices:%0A        if isinstance(value, (list, tuple)):%0A            for key, _ in value:%0A                yield key%0A        else:%0A            yield key%0A

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