apiVersion: release-notes/v2
kind: bug-fix
area: traffic-management
issue:
- 33401
releaseNotes:
- |

    client = TestClient(app)
    log = Path("log.txt")
    if log.is_file():
        os.remove(log)  # pragma: no cover
    response = client.post("/send-notification/******@****.***?q=some-query")
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Message sent"}
    with open("./log.txt") as f:

def test():
    log = Path("log.txt")
    if log.is_file():
        os.remove(log)  # pragma: no cover
    response = client.post("/send-notification/******@****.***?q=some-query")
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Message sent"}
    with open("./log.txt") as f:

	return s, r
}

// A _Sender is used to send values to a Receiver.
type _Sender[Elem any] struct {
	values chan<- Elem
	done   <-chan struct{}
}

// Send sends a value to the receiver. It reports whether the value was sent.
// The value will not be sent if the context is closed or the receiver
// is freed.
func (s *_Sender[Elem]) Send(ctx context.Context, v Elem) bool {
	select {
	case <-ctx.Done():

        background_tasks.add_task(write_log, message)
    return q


@app.post("/send-notification/{email}")
async def send_notification(
    email: str, background_tasks: BackgroundTasks, q: Annotated[str, Depends(get_query)]
):
    message = f"message to {email}\n"
    background_tasks.add_task(write_log, message)

Returning any error will also cancel the stream remotely.

CAREFUL: When utilizing two-way communication, it is important to ensure that the remote handler is not blocked on a send.
If the remote handler is blocked on a send, and the client is trying to send without the remote receiving, 
the operation would become deadlocked if the channels are full.

### Typed handlers

type TargetStats struct {
	// QueueLength is the queue length if any messages are queued.
	QueueLength int

	// TotalMessages is the total number of messages sent in the lifetime of the target
	TotalMessages int64

	// FailedMessages should log message count that failed to send.
	FailedMessages int64

	// one source is defined.
	Merge(source string, update interface{}) error
}

// mux is a class for merging configuration from multiple sources.  Changes are
// pushed via channels and sent to the merge function.
type mux struct {
	// Invoked when an update is sent to a source.
	merger merger

	// Sources and their lock.
	sourceLock sync.RWMutex
	// Maps source names to channels
	sources map[string]chan interface{}
}

        exchange.finishRequest()
      }
    } catch (e: IOException) {
      if (e is ConnectionShutdownException) {
        throw e // No request was sent so there's no response to read.
      }
      if (!exchange.hasFailure) {
        throw e // Don't attempt to read the response; we failed to send the request.
      }
      sendRequestException = e
    }

    try {
      if (responseBuilder == null) {

apiVersion: release-notes/v2
kind: feature
area: traffic-management
releaseNotes:
   - |
     **Added** the ability to configure automatically set SNI when `DestinationRules`
     do not specify it and `ENABLE_AUTO_SNI` is enabled.
docs: