// expected-remark@above {{ID: 7}}
    %island = tf_executor.island {
        // expected-remark@above {{ID: 5}}
        // expected-remark@above {{Successors: {6}}}
        %handle, %deleter = "tf.AnonymousIteratorV2"() {_class = ["loc:@GeneratorDataset_2"], device = "/job:tpu_host_worker/replica:0/task:0/device:CPU:0", output_shapes = [#tf_type.shape<>], output_types = [!tf_type.string]} : () -> (tensor<!tf_type.resource>, tensor<!tf_type.variant>)