requestHeaders: List<Header>,
  ) {
    withLock {
      if (streamId in currentPushRequests) {
        writeSynResetLater(streamId, ErrorCode.PROTOCOL_ERROR)
        return
      }
      currentPushRequests.add(streamId)
    }
    pushQueue.execute("$connectionName[$streamId] onRequest") {
      val cancel = pushObserver.onRequest(streamId, requestHeaders)
      ignoreIoExceptions {
        if (cancel) {

        if (functionsLambda != null) {
            functionsLambda.callback((cqLambda, scoreFunctionBuilder) -> {
                BadWordCQ cf = new BadWordCQ();
                cqLambda.callback(cf);
                list.add(new FilterFunctionBuilder(cf.getQuery(), scoreFunctionBuilder));
            });
        }
        final FunctionScoreQueryBuilder builder = regFunctionScoreQ(cq.getQuery(), list);
        if (opLambda != null) {

            functionsLambda.callback((cqLambda, scoreFunctionBuilder) -> {
                BoostDocumentRuleCQ cf = new BoostDocumentRuleCQ();
                cqLambda.callback(cf);
                list.add(new FilterFunctionBuilder(cf.getQuery(), scoreFunctionBuilder));
            });
        }
        final FunctionScoreQueryBuilder builder = regFunctionScoreQ(cq.getQuery(), list);
        if (opLambda != null) {

            functionsLambda.callback((cqLambda, scoreFunctionBuilder) -> {
                RequestHeaderCQ cf = new RequestHeaderCQ();
                cqLambda.callback(cf);
                list.add(new FilterFunctionBuilder(cf.getQuery(), scoreFunctionBuilder));
            });
        }
        final FunctionScoreQueryBuilder builder = regFunctionScoreQ(cq.getQuery(), list);
        if (opLambda != null) {

			partEncryptionKey := objectEncryptionKey.DerivePartKey(uint32(partID))
			in := io.Reader(hashReader)
			if size > encryptBufferThreshold {
				// The encryption reads in blocks of 64KB.
				// We add a buffer on bigger files to reduce the number of syscalls upstream.
				in = bufio.NewReaderSize(hashReader, encryptBufferSize)
			}

			var nonce [12]byte
			tmp := sha256.Sum256(fmt.Append(nil, uploadID, partID))

	for _, c := range contexts {
		c.Compiler = build.Default.Compiler
	}

	walkers := make([]*Walker, len(contexts))
	var wg sync.WaitGroup
	for i, context := range contexts {
		i, context := i, context
		wg.Add(1)
		go func() {
			defer wg.Done()
			walkers[i] = NewWalker(context, filepath.Join(testenv.GOROOT(t), "src"))
		}()
	}
	wg.Wait()

    int numHashFunctions = -1;
    int dataLength = -1;
    try {
      DataInputStream din = new DataInputStream(in);
      // currently this assumes there is no negative ordinal; will have to be updated if we
      // add non-stateless strategies (for which we've reserved negative ordinals; see
      // Strategy.ordinal()).
      strategyOrdinal = din.readByte();
      numHashFunctions = toUnsignedInt(din.readByte());

	var pre sparseEntry
	for _, cur := range src {
		if cur.Length == 0 {
			continue // Skip empty fragments
		}
		pre.Length = cur.Offset - pre.Offset
		if pre.Length > 0 {
			dst = append(dst, pre) // Only add non-empty fragments
		}
		pre.Offset = cur.endOffset()
	}
	pre.Length = size - pre.Offset // Possibly the only empty fragment
	return append(dst, pre)
}

        if (functionsLambda != null) {
            functionsLambda.callback((cqLambda, scoreFunctionBuilder) -> {
                PathMappingCQ cf = new PathMappingCQ();
                cqLambda.callback(cf);
                list.add(new FilterFunctionBuilder(cf.getQuery(), scoreFunctionBuilder));
            });
        }
        final FunctionScoreQueryBuilder builder = regFunctionScoreQ(cq.getQuery(), list);
        if (opLambda != null) {

        .build()

    val client = OkHttpClient.Builder()
        .sslSocketFactory(clientCertificates.sslSocketFactory(), clientCertificates.trustManager)
        .build()
    ```

 *  New: Add `cacheHit`, `cacheMiss`, and `cacheConditionalHit()` events to `EventListener`. Use
    these in logs, metrics, and even test cases to confirm your cache headers are configured as
    expected.