// stored in 8-bit.
// Returns a new buffer that is packed densely with 2 4-bit values in a byte.
// The packing format is low-bits-first, i.e. the lower nibble of a byte is
// filled first, followed by the upper nibble.
std::vector<uint8_t> PackInt4ValuesDensely(std::vector<uint8_t> src_buffer);

// Assumes `src_buffer` contains 2 4-bit elements packed in 8-bit.

	// Also, future updates to AWS might require larger sizes.
	Credentials auth.Credentials `xml:",omitempty"`

	// A percentage value that indicates the size of the policy in packed form.
	// The service rejects any policy with a packed size greater than 100 percent,
	// which means the policy exceeded the allowed space.
	PackedPolicySize int `xml:",omitempty"`
}

// unnecessary retention of objects. This is important for sync.Pool,
// but not typically a property considered in the literature.
type poolDequeue struct {
	// headTail packs together a 32-bit head index and a 32-bit
	// tail index. Both are indexes into vals modulo len(vals)-1.
	//
	// tail = index of oldest data in queue
	// head = index of next slot to fill
	//

      : RewritePattern(
            PackOp::getOperationName(), 1, context,
            {ConstOp::getOperationName(), ConcatV2Op::getOperationName(),
             ExpandDimsOp::getOperationName()}) {}

  LogicalResult matchAndRewrite(Operation *src_op,
                                PatternRewriter &rewriter) const override {
    auto op = cast<PackOp>(src_op);

    Location loc = op.getLoc();

                    byte[] bytes = new byte[9]
                    DatagramPacket packet = new DatagramPacket(bytes, bytes.length)
                    receivingSocket.receive(packet)
                    if (selectedAddress == null) {
                        selectedAddress = packet.address
                    }
                    if (selectedAddress == packet.address) {
                        reactOnRequest.run()
                    }

	//
	// DESC: If we have a packet mark, set a connmark.
	iptablesBuilder.AppendRule(iptableslog.UndefinedCommand, ChainInpodPrerouting, iptablesconstants.MANGLE, "-m", "mark",
		"--mark", inpodMark,
		"-j", "CONNMARK",
		"--set-xmark", inpodTproxyMark)

	// Handle healthcheck probes from the host node. In the host netns, before the packet enters the pod, we SNAT

  - |

// behind this is likelihood of reuse: the Go heap is allocated in a first-fit order
// and by the end of the GC mark phase, the heap tends to be densely packed. Releasing
// memory in these densely packed chunks while they're being packed is counter-productive,
// and worse, it breaks up huge pages on systems that support them. The scavenger (invoked

  if (*requested_placement == '\0') {
    TF_SetStatus(
        status, TF_INTERNAL,
        "Ops must be placed on the parallel device explicitly, or their inputs "
        "first un-packed. Got an un-placed op with an input placed on the "
        "parallel device.");
    return;
  }
  TFE_Context* context = TFE_OpGetContext(original_op, status);
  if (TF_GetCode(status) != TF_OK) return;

}

// Checks if a block argument is packed (forwarding a packed input).
bool ReplicateOp::IsPackedBlockArgument(BlockArgument block_arg) {
  return !IsReplicatedBlockArgument(block_arg);
}

// Returns the operand index of the operand being forwarded as a
// replicated/packed block argument for a given replica. This assumes a valid