fun readConnectionPreface(handler: Handler) {
    if (client) {
      // The client reads the initial SETTINGS frame.
      if (!nextFrame(true, handler)) {
        throw IOException("Required SETTINGS preface not received")
      }
    } else {
      // The server reads the CONNECTION_PREFACE byte string.
      val connectionPreface = source.readByteString(CONNECTION_PREFACE.size.toLong())

pointer safely, the program may crash or see memory corruption.

For example:

	// #cgo noescape cFunctionName

When a Go function calls a C function, it prepares for the C function to
call back to a Go function. The #cgo nocallback directive may be used to
tell the compiler that these preparations are not necessary.

		return fmt.Errorf("archive/tar: missed writing %d bytes", nb)
	}
	if _, tw.err = tw.w.Write(zeroBlock[:tw.pad]); tw.err != nil {
		return tw.err
	}
	tw.pad = 0
	return nil
}

// WriteHeader writes hdr and prepares to accept the file's contents.
// The Header.Size determines how many bytes can be written for the next file.
// If the current file is not fully written, then this returns an error.

#### Chaîne avec `value.startswith()` { #string-with-value-startswith }

Avez-vous remarqué ? Une chaîne utilisant `value.startswith()` peut prendre un tuple, et elle vérifiera chaque valeur du tuple :

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py ln[16:19] hl[17] *}

#### Un élément aléatoire { #a-random-item }

## Le voir dans la documentation { #see-it-in-the-docs }

Dans la documentation automatique, vous pouvez vérifier que le modèle d'entrée et le modèle de sortie auront chacun leur propre JSON Schema :

<img src="/img/tutorial/response-model/image01.png">

Et les deux modèles seront utilisés pour la documentation API interactive :

<img src="/img/tutorial/response-model/image02.png">

    assertThat(unmodifiable.asMap().get("bar")).containsExactly(5, -1);
    assertThat(unmodifiable.asMap().get("missing")).isNull();

    assertFalse(unmodifiable.entries() instanceof Serializable);
  }

  /** Prepares the multimap for unmodifiable tests, returning an unmodifiable view of the map. */
  private static Multimap<@Nullable String, @Nullable Integer> prepareUnmodifiableTests(
      Multimap<@Nullable String, @Nullable Integer> multimap,

this Lesser General Public License (also called "this License").
Each licensee is addressed as "you".

  A "library" means a collection of software functions and/or data
prepared so as to be conveniently linked with application programs
(which use some of those functions and data) to form executables.

  The "Library", below, refers to any such software library or work

* [`jinja2`](https://jinja.palletsprojects.com) - Obligatoire si vous souhaitez utiliser la configuration de template par défaut.
* [`python-multipart`](https://github.com/Kludex/python-multipart) - Obligatoire si vous souhaitez prendre en charge l’<dfn title="convertir la chaîne issue d'une requête HTTP en données Python">« parsing »</dfn> de formulaires avec `request.form()`.

Utilisées par FastAPI :

### Programme séparé { #separate-program }

    We planned to support multiplatform in OkHttp 5.0, but after building it, we weren't happy with
    the implementation trade-offs. We can't use our HTTP client engine on Kotlin/JS, and we weren't
    prepared to build a TLS API for Kotlin/Native.

    We'd prefer a multiplatform HTTP client API that's backed by OkHttp on Android and JVM, and
    other engines on other platforms. [Ktor] does this pretty well today!