Puedes usar la configuración del modelo de Pydantic para `prohibir` cualquier campo `extra`:

{* ../../docs_src/header_param_models/tutorial002_an_py310.py hl[10] *}

Si un cliente intenta enviar algunos **headers extra**, recibirán un response de **error**.

Por ejemplo, si el cliente intenta enviar un header `tool` con un valor de `plumbus`, recibirán un response de **error** indicando que el parámetro de header `tool` no está permitido:

```json
{

        when(mockCalledName.getNameType()).thenReturn(0x20);
        when(mockCalledName.getScope()).thenReturn(null);

        when(mockCallingName.getName()).thenReturn("CLIENT");
        when(mockCallingName.getNameType()).thenReturn(0x00);
        when(mockCallingName.getScope()).thenReturn(null);

        .header("Cache-Control", "max-age=60")
        .build();
  };

  private final OkHttpClient client;

  public RewriteResponseCacheControl(File cacheDirectory) throws Exception {
    Cache cache = new Cache(cacheDirectory, 1024 * 1024);
    cache.evictAll();

    client = new OkHttpClient.Builder()
        .cache(cache)
        .build();
  }

  public void run() throws Exception {

public static final String USE_DIRECTORY_LEASING = "jcifs.smb.client.useDirectoryLeasing";
public static final String DIRECTORY_CACHE_SCOPE = "jcifs.smb.client.directoryCacheScope";
public static final String DIRECTORY_CACHE_TIMEOUT = "jcifs.smb.client.directoryCacheTimeout";
public static final String DIRECTORY_NOTIFICATIONS_ENABLED = "jcifs.smb.client.directoryNotificationsEnabled";

    assertThat(violations[0].message).isEqualTo("newSSLContext")
  }

  @Test
  fun testNewCall() {
    Platform.resetForTests()

    val client = OkHttpClient()

    applyStrictMode()

    // Safe on main
    client.newCall(Request("https://google.com/robots.txt".toHttpUrl()))

    assertThat(violations).isEmpty()
  }

  private fun applyStrictMode() {
    StrictMode.setThreadPolicy(

  private final OkHttpClient client = new OkHttpClient.Builder()
      .addInterceptor(new LoggingInterceptor())
      .build();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("https://publicobject.com/helloworld.txt")
        .build();

    Response response = client.newCall(request).execute();
    response.body().close();
  }

 * [Autobahn Testsuite](http://autobahn.ws/testsuite/).
 */
class AutobahnTester {
  val client = OkHttpClient()

  private fun newWebSocket(
    path: String,
    listener: WebSocketListener,
  ): WebSocket {
    val request =
      Request
        .Builder()
        .url(HOST + path)
        .build()
    return client.newWebSocket(request, listener)
  }

  fun run() {
    try {

            runner.admin().indices().prepareDelete("_all").execute().actionGet();
        } catch (IndexNotFoundException ignore) {

        }
        runner.refresh();
        settings = Suggester.builder().build(runner.client(), id).settings();
    }

    @Test
    public void test_defaultSettings() throws Exception {
        assertEquals("settings-test.suggest", settings.getAsString(SuggestSettings.DefaultKeys.INDEX, ""));

* **`300`** y superiores son para "Redirección". Los responses con estos códigos de estado pueden o no tener un body, excepto `304`, "Not Modified", que no debe tener uno.
* **`400`** y superiores son para responses de "Error del Cliente". Este es el segundo tipo que probablemente más usarías.

  val clientTestRule = OkHttpClientTestRule()

  private var client = clientTestRule.newClientBuilder().build()

  @StartStop
  private val server = MockWebServer()

  val request by lazy { Request(server.url("/")) }

  @Test
  fun suspendCall() {
    runTest {
      server.enqueue(MockResponse(body = "abc"))

      val call = client.newCall(request)

      call.executeAsync().use {