def METHOD_NAME(worker, guest_client):
    root_domain_client = worker.root_client
    obj = TwinObject(
        private_obj=np.array([[1, 2, 3], [4, 5, 6]]),
        mock_obj=np.array([[1, 1, 1], [1, 1, 1]]),
    )
    obj_pointer = root_domain_client.api.services.action.set(obj)
    obj_pointer = guest_client.api.services.action.get_pointer(obj_pointer.id)
    size_pointer = obj_pointer.size
    # check result
    assert size_pointer.id.id in worker.action_store.data
    assert root_domain_client.api.services.action.get(size_pointer.id) == 6