@classmethod
def is_completed_status(cls, status):
    """
        Returns a boolean if the passed in status is in a "completed" state, meaning
        that it cannot go backwards in state
        """
    return status in [cls.declined, cls.timed_out, cls.submitted, cls.
        second_review_required, cls.verified, cls.rejected, cls.error, cls.
        onboarding_missing, cls.onboarding_pending, cls.onboarding_failed,
        cls.onboarding_expired]
