HashFunctionEnum hashFunctionEnum;

  private String[] strings;

  static final int SAMPLES = 0x100;
  static final int SAMPLE_MASK = 0xFF;

  /**
   * Compute arrays of valid unicode text, and store it in 3 forms: byte arrays, Strings, and
   * StringBuilders (in a CharSequence[] to make it a little harder for the JVM).
   */
  @BeforeExperiment
  void setUp() {
    long seed = 99;
    Random rnd = new Random(seed);

import static org.junit.jupiter.api.Assertions.assertNull;

/**
 * Test for logging configuration behavior in LookupInvoker.
 * This test verifies that the fix for GH-11199 works correctly.
 */
class LookupInvokerLoggingTest {

    private String originalSystemProperty;

    @BeforeEach
    void setUp() {
        // Save original system property

# Middleware { #middleware }

You can add middleware to **FastAPI** applications.

A "middleware" is a function that works with every **request** before it is processed by any specific *path operation*. And also with every **response** before returning it.

* It takes each **request** that comes to your application.
* It can then do something to that **request** or run any needed code.

Ви можете помістити свій вміст XML у строку, помістити це в `Response` і повернути:

{* ../../docs_src/response_directly/tutorial002_py310.py hl[1,18] *}

## Як працює модель відповіді { #how-a-response-model-works }

Коли ви оголошуєте [Модель відповіді - Тип, що повертається](../tutorial/response-model.md) в операції шляху, **FastAPI** використає її, щоб серіалізувати дані у JSON за допомогою Pydantic.

- Do **not** introduce extra words to replace repeated phrases unnecessarily.
- Keep translations fluent and concise, but maintain the original meaning.

**Example:**

Source:
Let's see how that works and how to change it if you need to do that.

Avoid translating literally as:
Vamos ver como isso funciona e como alterar isso se você precisar fazer isso.

Better translation:

        File checkstyleConf = new File(checkstyleDir, "checkstyle.xml");
        TaskProvider<Task> copyCheckstyleConf = project.getTasks().register("copyCheckstyleConf");

        // configure inputs and outputs so up to date works properly
        copyCheckstyleConf.configure(t -> t.getOutputs().files(checkstyleSuppressions, checkstyleConf));
        if ("jar".equals(checkstyleConfUrl.getProtocol())) {
            try {

    assertThat(escaper.escape("\0\uFFFF")).isEqualTo("\0\uFFFF");
  }

  public void testBuilderRetainsState() {
    // Setting a safe range and unsafe replacement works as expected.
    Escapers.Builder builder = Escapers.builder();
    builder.setSafeRange('a', 'z');
    builder.setUnsafeReplacement("X");

        assertTrue(npe2.getMessage().contains("non-null"));
        verifyNoInteractions(mockDir);
    }

    /**
     * Sanity: implementing via an anonymous class works the same as a lambda.
     */
    @Test
    @DisplayName("anonymous class implementation behaves correctly")
    void anonymousClassImplementation() throws Exception {

    # o isDbCommentOnAliasBasis: (NotRequired - Default false)
    #  Is DB comment on alias basis?
    #  (Is DB comment alias name when it has no alias delimiter?)
    #  This property works with 'aliasDelimiterInDbComment'.
    #
    #; isDbCommentOnAliasBasis = false
    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

In fact, in some cases, it will even have **two JSON Schemas** in OpenAPI for the same Pydantic model, for input and output, depending on if they have **default values**.

Let's see how that works and how to change it if you need to do that.

## Pydantic Models for Input and Output { #pydantic-models-for-input-and-output }

Let's say you have a Pydantic model with default values, like this one: