And also that your code will be very compatible with many other Python tools and libraries. 🚀

///

## Type hints in **FastAPI** { #type-hints-in-fastapi }

**FastAPI** takes advantage of these type hints to do several things.

With **FastAPI** you declare parameters with type hints and you get:

* **Editor support**.
* **Type checks**.

...and **FastAPI** uses the same declarations to:

  <mime-type type="application/eshop"/>
  <mime-type type="application/example"/>
  <mime-type type="application/fastinfoset"/>
  <mime-type type="application/fastsoap"/>

  <mime-type type="application/fits">
    <acronym>FITS</acronym>
    <_comment>Flexible Image Transport System</_comment>
    <tika:link>http://www.digitalpreservation.gov/formats/fdd/fdd000317.shtml</tika:link>
    <magic priority="50">

    assertThat(Ints.indexOf(ARRAY234, ARRAY1)).isEqualTo(-1);
    assertThat(Ints.indexOf(ARRAY1, ARRAY234)).isEqualTo(-1);
    assertThat(Ints.indexOf(ARRAY1, ARRAY1)).isEqualTo(0);
    assertThat(Ints.indexOf(ARRAY234, ARRAY234)).isEqualTo(0);
    assertThat(Ints.indexOf(ARRAY234, new int[] {(int) 2, (int) 3})).isEqualTo(0);
    assertThat(Ints.indexOf(ARRAY234, new int[] {(int) 3, (int) 4})).isEqualTo(1);

It had automatic data validation, data serialization and OpenAPI schema generation based on the same type hints in several places.

E também que o seu código será muito compatível com diversas outras ferramentas e bibliotecas Python. 🚀

///

## Type hints no **FastAPI** { #type-hints-in-fastapi }

O **FastAPI** aproveita esses type hints para fazer várias coisas.

Com o **FastAPI**, você declara parâmetros com type hints e obtém:

* **Suporte ao editor**.
* **Verificações de tipo**.

... e o **FastAPI** usa as mesmas declarações para:

fiets=>fiets
bromfiets=>bromfiets
ei=>eier

C'était l'une des premières implémentations d'un framework utilisant les type hints Python pour déclarer les paramètres
et les requêtes que j'ai vues (avant NestJS et Molten). Je l'ai trouvé plus ou moins en même temps que Hug. Mais APIStar utilisait le standard OpenAPI.

Il disposait de la validation automatique, sérialisation des données et d'une génération de schéma OpenAPI basée sur les mêmes type hints à plusieurs endroits.

  - name: suggest
    description: Suggest operations
  - name: favorite
    description: Favorite operations
paths:
  /documents:
    get:
      tags:
        - search
      summary: Finds documents by query
      description: Finds documents by search conditions
      operationId: searchDocuments
      parameters:
        - name: q
          in: query
          description: Search words
          required: false

     * All wire‑format methods should return zero regardless of inputs.
     */
    @Nested
    @DisplayName("Wire format method behaviour")
    class WireFormatMethods {
        @ParameterizedTest
        @ValueSource(ints = { 0, 1, -1, Integer.MAX_VALUE, Integer.MIN_VALUE })
        @DisplayName("writeSetupWireFormat returns 0 for all indices")
        void writeSetupWireFormatReturnsZero(int index) {

/* Fira Code, including characters used by Rich output, like the "heavy right-pointing angle bracket ornament", not included in Google Fonts */
@import url(https://cdn.jsdelivr.net/npm/firacode@6.2.0/distr/fira_code.css);
/* Noto Color Emoji for emoji support with the same font everywhere */
@import url(https://fonts.googleapis.com/css2?family=Noto+Color+Emoji&display=swap);

/* Override default code font in Material for MkDocs to Fira Code */
:root {