def METHOD_NAME(cls):
    if cls._schema_on_200 is not None:
        return cls._schema_on_200
    cls._schema_on_200 = AAZObjectType()
    _schema_on_200 = cls._schema_on_200
    _schema_on_200.reservation_order = AAZObjectType(
        serialized_name="reservationOrder",
    )
    _ChangeDirectoryHelper._build_schema_change_directory_result_read(_schema_on_200.reservation_order)
    _schema_on_200.reservations = AAZListType()
    reservations = cls._schema_on_200.reservations
    reservations.Element = AAZObjectType()
    _ChangeDirectoryHelper._build_schema_change_directory_result_read(reservations.Element)
    return cls._schema_on_200