%0 = "tf_device.cluster_func"(%arg0) {_producer_name = "UNKNOWN", func = @_func, input_sharding_configuration = [""], num_cores_per_replica = 1 : i64, device_assignment = [], topology = "", output_sharding_configuration = [""], step_marker_location = "STEP_MARK_AT_ENTRY", use_spmd_for_xla_partitioning = false, use_tpu = true} : (tensor<1x3xf32>) -> (tensor<1x3xf32>)
  return %0 : tensor<1x3xf32>
}

// CHECK-LABEL: @_func

namespace tensorflow {

inline constexpr llvm::StringRef kInputShardingAttr =
    "input_sharding_configuration";
inline constexpr llvm::StringRef kOutputShardingAttr =
    "output_sharding_configuration";

// Parses the sharding string. This sharding string can be binary (serialized)
// or human readable.
mlir::LogicalResult DecodeShardingAttribute(const std::string& shard_str,