// CHECK: Cast
    // CHECK-SAME: (tensor<!tf_type.variant<tensor<2xf32>>>) -> tensor<!tf_type.variant<tensor<2xf32>>>
    %0 = "tf.Cast"(%arg0) {Truncate = false} : (tensor<!tf_type.variant<tensor<2xf32>>>) -> tensor<!tf_type.variant>
    %1 = "tf.Identity"(%0) : (tensor<!tf_type.variant>) -> tensor<!tf_type.variant>

        %3 = "tf.OptionalHasValue"(%2) : (tensor<!tf_type.variant>) -> tensor<i1>
        %4 = "tf.IfRegion"(%3) ({
          %5 = "tf.OptionalGetValue"(%2) : (tensor<!tf_type.variant>) -> tensor<32xf32>

(AtomicCompareAndSwap(32|64) ...) => (LoweredAtomicCas(32|64)      ...)

(AtomicAdd(32|64)Variant            ...) => (LoweredAtomicAdd(32|64)Variant      ...)
(AtomicExchange(32|64)Variant       ...) => (LoweredAtomicExchange(32|64)Variant ...)
(AtomicCompareAndSwap(32|64)Variant ...) => (LoweredAtomicCas(32|64)Variant      ...)

// Return old contents.

        // expected-remark@above {{ID: 0}}
        "tf.MakeIterator"(%arg0, %handle) {_class = ["loc:@GeneratorDataset_2"], device = "/job:tpu_host_worker/replica:0/task:0/device:CPU:0"} : (tensor<!tf_type.variant>, tensor<!tf_type.resource>) -> ()
        // expected-remark@above {{ID: 1}}

  %1 = "tf.TensorListGetItem"(%0, %arg2, %arg1) {device = "/job:localhost/replica:0/task:0/device:GPU:0"} : (tensor<!tf_type.variant<tensor<1x32xf32>>>, tensor<i32>, tensor<2xi32>) -> tensor<1x32xf32>

// xn--mgberp4a5d4ar ("AlSaudiah", Arabic) : SA
// http://www.nic.net.sa/
السعودية

// xn--mgberp4a5d4a87g ("AlSaudiah", Arabic, variant)  : SA
السعودیة

// xn--mgbqly7c0a67fbc ("AlSaudiah", Arabic, variant) : SA
السعودیۃ

// xn--mgbqly7cvafr ("AlSaudiah", Arabic, variant) : SA
السعوديه

// xn--mgbpl2fh ("sudan", Arabic) : SD
// Operated by .sd registry
سودان

      metadata = ""} : (
              tensor<4xf32>,
              tensor<3xf32>,
              tensor<!tf_type.resource>,
              tensor<2xf32>) -> tensor<!tf_type.variant>
  return %0 : tensor<!tf_type.variant>