tf_device.return %identity : tensor<i32>
      }) {device = "some_device"} : () -> (tensor<i32>)
      return %launch : tensor<i32>
    }
    ```

    will be transformed into:

    ```mlir
    func @computation(%arg0: tensor<i32>) -> tensor<i32> {
      %launch = "tf_device.launch_func"(%arg0) {device = "some_device", func = @_func} : (tensor<i32>) -> tensor<i32>
      return %launch : tensor<i32>