async def METHOD_NAME(
    dbus_session_bus: MessageBus,
) -> PartitionService:
    """Mock sdb1 Partition service."""
    yield (
        await mock_dbus_services(
            {"udisks2_partition": "/org/freedesktop/UDisks2/block_devices/sdb1"},
            dbus_session_bus,
        )
    )["udisks2_partition"]