// ===================================================================================
    //                                                                             Control
    //                                                                             =======

    public boolean hasAggregations() {

   * with a satisfied guard (if one exists) whenever any thread occupying the monitor exits the
   * monitor, either by unlocking all of its held locks, or by starting to wait for a guard. This
   * includes exceptional exits, so all control paths involving signalling must be protected by a
   * finally block.
   *
   * Further optimizations of this algorithm become increasingly subtle. A wait that terminates

    private DocMetaCQ docMetaCQ;

    // ===================================================================================
    //                                                                             Control
    //                                                                             =======
    public DocMetaCQ docMeta() {
        if (docMetaCQ == null) {
            docMetaCQ = new DocMetaCQ();
        }

  private fun trailersAndCache(protocol: Protocol) {
    enableProtocol(protocol)

    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("h1", "v1")
        .addHeader("Cache-Control: max-age=30")
        .body(protocol, "Hello")
        .trailers(headersOf("t1", "v2"))
        .build(),
    )

    val call1 = client.newCall(Request(server.url("/")))
    call1.execute().use { response ->

)

// startWithConds - map which indicates if a given condition supports starts-with policy operator
var startsWithConds = map[string]bool{
	"$acl":                     true,
	"$bucket":                  false,
	"$cache-control":           true,
	"$content-type":            true,
	"$content-disposition":     true,
	"$content-encoding":        true,
	"$expires":                 true,
	"$key":                     true,

): Int {
  for (i in startIndex until endIndex) {
    if (this[i] == delimiter) return i
  }
  return endIndex
}

/**
 * Returns the index of the first character in this string that is either a control character (like
 * `\u0000` or `\n`) or a non-ASCII character. Returns -1 if this string has no such characters.
 */
internal fun String.indexOfControlOrNonAscii(): Int {
  for (i in 0 until length) {
    val c = this[i]

O middleware responde a dois tipos específicos de solicitação HTTP...

### Requisições CORS pré-voo (preflight)

Estas são quaisquer solicitações `OPTIONS` com cabeçalhos `Origin` e `Access-Control-Request-Method`.

Nesse caso, o middleware interceptará a solicitação recebida e responderá com cabeçalhos CORS apropriados e uma resposta `200` ou `400` para fins informativos.

### Requisições Simples

    // ===================================================================================
    //                                                                    Control Override
    //                                                                    ================
    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override

    // ===================================================================================
    //                                                                    Control Override
    //                                                                    ================
    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override

   * form parameter names and values</a>. Escaping is performed with the UTF-8 character encoding.
   * The caller is responsible for <a
   * href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data">replacing
   * any unpaired carriage return or line feed characters with a CR+LF pair</a> on any non-file
   * inputs before escaping them with this escaper.
   *