def _find_one_after_last_labeled_index(self):
        body_index = 0
        while self.bodies[body_index].segment_id in self.state.body_labels:
            body_index += 1
        return body_index
def deserialize(self, value):
        value = decode(value)
        validators.validate_required(value, self._required)
        if not value:
            return None
        value = int(value)
        validators.validate_choice(value, self._choices)
        validators.validate_minimum(value, self._minimum)
        validators.validate_maximum(value, self._maximum)
        return value