assertThat(streamId).isEqualTo(2)
      events.add(requestHeaders)
      notifyAll()
      return false
    }

    @Synchronized override fun onHeaders(
      streamId: Int,
      responseHeaders: List<Header>,
      last: Boolean,
    ): Boolean {
      assertThat(streamId).isEqualTo(2)
      assertThat(last).isTrue()
      events.add(responseHeaders)
      notifyAll()
      return false

                ? requestPomProject.getCollectedProjects()
                : Collections.emptyList();

        List<MavenProject> result = new ArrayList<>(modules);
        result.add(requestPomProject);
        return result;
    }

    private String formatProjects(List<MavenProject> projects) {
        StringBuilder projectNames = new StringBuilder();

		LastPing:           time.Now().Unix(),
		BaseFlags:          c.baseFlags,
		clientPingInterval: c.clientPingInterval,
	}
	// Acknowledge Mux created.
	// Send async.
	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		defer wg.Done()
		var ack message
		ack.Op = OpAckMux
		ack.Flags = m.BaseFlags
		ack.MuxID = m.ID
		m.send(ack)
		if debugPrint {
			fmt.Println("connected stream mux:", ack.MuxID)

        Consumer<ProcessBuilder> pbCall = pb -> {
            pb.redirectErrorStream(true);
        };

        List<String> outputs = new ArrayList<>();
        Consumer<String> outputCallback = output -> outputs.add(output);

        try {
            JobProcess jobProcess = processHelper.startProcess(sessionId, cmdList, pbCall, 1024, outputCallback);
            assertNotNull(jobProcess);

Vous pouvez passer un `dict`, une `list`, etc.

Elles sont gérées automatiquement par **FastAPI** et converties en JSON.

///

## Ajouter des en-têtes personnalisés { #add-custom-headers }

Dans certaines situations, il est utile de pouvoir ajouter des en-têtes personnalisés à l'erreur HTTP. Par exemple, pour certains types de sécurité.

	return messWith("crc32-not-streamed.zip", func(b []byte) {
		// Corrupt foo.txt's final crc32 byte, in both
		// the file header and TOC. (0x7e -> 0x7f)
		b[0x11]++
		b[0x9d]++

		// TODO(bradfitz): add a new test that only corrupts
		// one of these values, and verify that that's also an
		// error. Currently, the reader code doesn't verify the
		// fileheader and TOC's crc32 match if they're both

    }
  }

  static void checkExactMatches(CharMatcher m, char[] chars) {
    Set<Character> positive = Sets.newHashSetWithExpectedSize(chars.length);
    for (char c : chars) {
      positive.add(c);
    }
    for (int c = 0; c <= Character.MAX_VALUE; c++) {
      assertFalse(positive.contains(Character.valueOf((char) c)) ^ m.matches((char) c));
    }
  }

      if (valuesBuilder == null) {
        valuesBuilder = newValueCollectionBuilderWithExpectedSize(expectedValuesPerKey);
        ensureBuilderMapNonNull().put(key, valuesBuilder);
      }
      valuesBuilder.add(value);
      return this;
    }

    /**
     * Adds an entry to the built multimap.
     *
     * @since 11.0
     */
    @CanIgnoreReturnValue

   *
   * <p>The multimap supports mapping removal, which removes the corresponding mapping from the map.
   * It does not support any operations which might add mappings, such as {@code put}, {@code
   * putAll} or {@code replaceValues}.
   *
   * <p>The returned multimap will be serializable if the specified map is serializable.
   *

   *
   * <p>The multimap supports mapping removal, which removes the corresponding mapping from the map.
   * It does not support any operations which might add mappings, such as {@code put}, {@code
   * putAll} or {@code replaceValues}.
   *
   * <p>The returned multimap will be serializable if the specified map is serializable.
   *