tf_executor.yield %a, %launch#0, %launch#1, %c : tensor<i1>, tensor<f32>, tensor<i32>, tensor<i1>
    }
    tf_executor.fetch
  }
  func.return
}

// CHECK:      %[[A:.*]] = "tf.opA"
// CHECK:      %[[B:.*]]:2 = "tf.opB"(%[[A]])
// CHECK-SAME: device = "CPU:0"
// CHECK:      %[[C:.*]] = "tf.opC"
// CHECK-NOT:  "tf_device.launch"
// CHECK:      tf_executor.yield %[[A]], %[[B]]#1, %[[B]]#0, %[[C]]

      %3 = "tf.opA"(%arg0) : (tensor<i1>) -> tensor<i1>
      tf_executor.yield %3 : tensor<i1>
    }
    %2:2 = tf_executor.island(%1#1) {
      %4 = "tf.opB"() : () -> tensor<f32>
      tf_executor.yield %4 : tensor<f32>
    }
    tf_executor.fetch %2#0 : tensor<f32>
  }
  func.return %0 : tensor<f32>
}

// CHECK-LABEL: @func2

	})
	return err
}

func iterSimple(yield func(int) bool) {
	for range 3 {
		if !yield(5) {
			return
		}
	}
}

func iterNested(yield func(int) bool) {
	next, stop := iter.Pull(iterSimple)
	for {
		v, ok := next()
		if ok {
			if !yield(v) {
				stop()
			}
		} else {
			return
		}
	}
}

func iterCallback(yield func(int) bool) {
	for range 3 {

func.func @multiple_func_body_ops() {
  tf_executor.graph {
    tf_executor.island {
      "tf.NoOp"() : () -> ()
      tf_executor.yield
    }
    tf_executor.fetch
  }
  tf_executor.graph {
    tf_executor.island {
      "tf.NoOp"() : () -> ()
      tf_executor.yield
    }
    tf_executor.fetch
  }
  func.return
}

// -----

        tf_device.return %2 : tensor<i64>
      }
      tf_executor.yield %1#0, %1#1 : tensor<i64>, tensor<i64>
    }
    tf_executor.fetch
  }
  func.return
}

// CHECK:      tf_executor.island
// CHECK:      [[CONST_0:%.+]] = "tf.Const"
// CHECK-SAME: value = dense<1> : tensor<i64>
// CHECK:      tf_executor.yield [[CONST_0]]
// CHECK:      tf_executor.island
// CHECK:      [[CONST_1:%.+]] = "tf.Const"

	return func(yield func(K, V) bool) {
		for k, v := range m {
			if !yield(k, v) {
				return
			}
		}
	}
}

// Keys returns an iterator over keys in m.
// The iteration order is not specified and is not guaranteed
// to be the same from one call to the next.
func Keys[Map ~map[K]V, K comparable, V any](m Map) iter.Seq[K] {
	return func(yield func(K) bool) {
		for k := range m {

	return func(yield func(int, E) bool) {
		for i, v := range s {
			if !yield(i, v) {
				return
			}
		}
	}
}

// Backward returns an iterator over index-value pairs in the slice,
// traversing it backward. The indexes range from len(s)-1 down to 0.
func Backward[Slice ~[]E, E any](s Slice) iter.Seq2[int, E] {
	return func(yield func(int, E) bool) {
		for i := len(s) - 1; i >= 0; i-- {

    dep_a = generate_dep_a()
    try:
        yield dep_a
    finally:
        dep_a.close()


async def dependency_b(dep_a=Depends(dependency_a)):
    dep_b = generate_dep_b()
    try:
        yield dep_b
    finally:
        dep_b.close(dep_a)


async def dependency_c(dep_b=Depends(dependency_b)):
    dep_c = generate_dep_c()
    try:
        yield dep_c
    finally:

    dep_a = generate_dep_a()
    try:
        yield dep_a
    finally:
        dep_a.close()


async def dependency_b(dep_a=Depends(dependency_a)):
    dep_b = generate_dep_b()
    try:
        yield dep_b
    finally:
        dep_b.close(dep_a)


async def dependency_c(dep_b=Depends(dependency_b)):
    dep_c = generate_dep_c()
    try:
        yield dep_c
    finally:

    // CHECK-SAME:       _xla_compile_device_type = "TPU"
    // CHECK-SAME:       device = "/job:localhost/replica:0/task:0/device:TPU:1"
    // CHECK:            "tf.Yield"(%[[FUNC_CALL]])
    // CHECK:            "tf.Yield"(%[[ARG_5]])
    // CHECK:          "tf.Yield"(%[[HAS_VALUE]], %[[IF]])
    %1 = "tf.ReduceDataset"(%arg0, %arg1) {
      Targuments = [],
      Tstate = [i64], device = "/job:localhost/replica:0/task:0/device:TPU:1",