}

    // If we add an "Accept-Encoding: gzip" header field we're responsible for also decompressing
    // the transfer stream.
    var transparentGzip = false
    if (userRequest.header("Accept-Encoding") == null && userRequest.header("Range") == null) {
      transparentGzip = true
      requestBuilder.header("Accept-Encoding", "gzip")
    }

     * as the specified wildcard and attributes are passed to the server for
     * filtering there (although attributes are largely ignored by servers
     * they are filtered locally by the default accept method).
     *
     * @param wildcard the wildcard pattern for matching file names (e.g., "*.txt")
     * @param attributes the DOS file attributes to match (e.g., ATTR_DIRECTORY)
     */

    private void runServer() {
        while (running.get() && !serverSocket.isClosed()) {
            try {
                Socket clientSocket = serverSocket.accept();
                // In a real implementation, this would handle RPC requests
                // For the mock, we just accept connections and close them
                clientSocket.close();
            } catch (IOException e) {
                if (running.get()) {

    Request request = new Request.Builder()
        .url("https://api.github.com/repos/square/okhttp/issues")
        .header("User-Agent", "OkHttp Headers.java")
        .addHeader("Accept", "application/json; q=0.5")
        .addHeader("Accept", "application/vnd.github.v3+json")
        .build();

    try (Response response = client.newCall(request).execute()) {

          A result(Collector<T, A, R> collector, Iterable<T> inputs) {
        A accum = collector.supplier().get();
        for (T input : inputs) {
          collector.accumulator().accept(accum, input);
        }
        return accum;
      }
    },
    /** Get one accumulator for each element and merge the accumulators left-to-right. */
    MERGE_LEFT_ASSOCIATIVE {
      @Override

    val request =
      Request
        .Builder()
        .url("https://api.github.com/repos/square/okhttp/issues")
        .header("User-Agent", "OkHttp Headers.java")
        .addHeader("Accept", "application/json; q=0.5")
        .addHeader("Accept", "application/vnd.github.v3+json")
        .build()

    client.newCall(request).execute().use { response ->
      if (!response.isSuccessful) throw IOException("Unexpected code $response")

      Header(RESPONSE_STATUS, "400"),
      Header(RESPONSE_STATUS, "404"),
      Header(RESPONSE_STATUS, "500"),
      Header("accept-charset", ""),
      Header("accept-encoding", "gzip, deflate"),
      Header("accept-language", ""),
      Header("accept-ranges", ""),
      Header("accept", ""),
      Header("access-control-allow-origin", ""),
      Header("age", ""),
      Header("allow", ""),
      Header("authorization", ""),

     * as the specified wildcard and attributes are passed to the server for
     * filtering there (although attributes are largely ignored by servers
     * they are filtered locally by the default accept method).
     *
     * @param wildcard the wildcard pattern for matching file names (e.g., "*.txt")
     * @param attributes the DOS file attributes to match (e.g., ATTR_DIRECTORY)
     */

   * `public final Error getCause()`.)
   */

  /**
   * Creates a new instance with {@code null} as its detail message and no cause.
   *
   * @deprecated Prefer {@linkplain ExecutionError(Error)} a constructor that accepts a cause: Users
   *     of this class typically expect for instances to have a non-null cause. At the moment, you
   *     can <i>usually</i> still preserve behavior by passing an explicit {@code null} cause. Note,

      @JvmName("create")
      fun Call.Factory.asEventSourceFactory(): Factory =
        Factory { request, listener ->
          val actualRequest =
            if (request.header("Accept") == null) {
              request.newBuilder().addHeader("Accept", "text/event-stream").build()
            } else {
              request
            }

          this.newCall(actualRequest).enqueueEventSource(listener)
        }
    }
  }