private val maskCursor: Buffer.UnsafeCursor? = if (isClient) Buffer.UnsafeCursor() else null

  /** Send a ping with the supplied [payload]. */
  @Throws(IOException::class)
  fun writePing(payload: ByteString) {
    writeControlFrame(OPCODE_CONTROL_PING, payload)
  }

  /** Send a pong with the supplied [payload]. */
  @Throws(IOException::class)
  fun writePong(payload: ByteString) {

///

```Python hl_lines="10"
{!> ../../docs_src/header_param_models/tutorial002.py!}
```

////

If a client tries to send some **extra headers**, they will receive an **error** response.

For example, if the client tries to send a `tool` header with a value of `plumbus`, they will receive an **error** response telling them that the header parameter `tool` is not allowed:

```json
{

---
name: Feature request
about: Suggest an idea
title: ''
labels: enhancement
assignees: ''

---

Start by telling us what problem you’re trying to solve. Often a solution already exists!

		return err
	}
	if err := target.init(); err != nil {
		return err
	}
	err := target.send(eventData)
	if err != nil {
		if xnet.IsNetworkOrHostDown(err, false) {
			return store.ErrNotConnected
		}
	}
	return err
}

// send - sends an event to the webhook.
func (target *WebhookTarget) send(eventData event.Event) error {
	objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
	if err != nil {

	// Channel *must* be closed to signal the end of the stream.
	// If the request context is canceled, the stream will no longer process requests.
	// Requests sent cannot be used any further by the called.
	Requests chan<- []byte

	muxID uint64
	ctx   context.Context
}

// Send a payload to the remote server.
func (s *Stream) Send(b []byte) error {
	if s.Requests == nil {

                    req.setCreateDisposition(Smb2CreateRequest.FILE_OPEN);
                    req.chain(new Smb2CloseRequest(th.getConfig(), fileName));
                    th.send(req);
                }
                else {
                    th.send(new SmbComDeleteDirectory(th.getConfig(), fileName), new SmbComBlankResponse(th.getConfig()));
                }
            }
            else {

            throw new SmbException(loc.getURL() + " directory must end with '/'");
        }
        if ( unc.lastIndexOf('\\') != ( unc.length() - 1 ) ) {
            throw new SmbException(unc + " UNC must end with '\\'");
        }

        SmbTreeHandleImpl th = getTreeHandle();
        this.response = new Trans2FindFirst2Response(th.getConfig());

        try {
            th.send(
                new Trans2FindFirst2(

	}
	if err := target.init(); err != nil {
		return err
	}

	_, err := target.isActive()
	if err != nil {
		return err
	}
	return target.send(eventData)
}

// send - sends an event to the mysql.
func (target *MySQLTarget) send(eventData event.Event) error {
	if target.args.Format == event.NamespaceFormat {
		objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
		if err != nil {

                request.flags2 &= ~ServerMessageBlock.FLAGS2_RESOLVE_PATHS_IN_DFS;
        }
    }
    void send( ServerMessageBlock request,
                    ServerMessageBlock response ) throws SmbException {
        for( ;; ) {
            resolveDfs(request);
            try {
                tree.send( request, response );
                break;
            } catch( DfsReferral dre ) {

	}

	if err := target.init(); err != nil {
		return err
	}

	_, err := target.isActive()
	if err != nil {
		return err
	}
	return target.send(eventData)
}

// send - sends an event to the NSQ.
func (target *NSQTarget) send(eventData event.Event) error {
	objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
	if err != nil {
		return err
	}