}

  /**
   * Returns {@code true} if this is an overridable method. Constructors, private, static or final
   * methods, or methods declared by final classes are not overridable.
   */
  public abstract boolean isOverridable();

  /** Returns {@code true} if this was declared to take a variable number of arguments. */
  public abstract boolean isVarArgs();

  /**

Si vous utilisez des bibliothèques tierces qui nécessitent d'être appelées avec `await`, telles que :

```Python
results = await some_library()
```
Alors, déclarez vos *fonctions de chemins* avec `async def` comme ceci :

```Python hl_lines="2"
@app.get('/')
async def read_results():
    results = await some_library()
    return results
```

/// note

# Body - Fields { #body-fields }

The same way you can declare additional validation and metadata in *path operation function* parameters with `Query`, `Path` and `Body`, you can declare validation and metadata inside of Pydantic models using Pydantic's `Field`.

## Import `Field` { #import-field }

First, you have to import it:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}


/// warning

Más adelante, al leer sobre cómo estructurar aplicaciones más grandes ([Aplicaciones Más Grandes - Múltiples Archivos](../../tutorial/bigger-applications.md){.internal-link target=_blank}), posiblemente con múltiples archivos, aprenderás cómo declarar un solo parámetro de `dependencies` para un grupo de *path operations*....

Los archivos y campos de formulario se subirán como form data y recibirás los archivos y campos de formulario.

Y puedes declarar algunos de los archivos como `bytes` y algunos como `UploadFile`.

/// warning | Advertencia

E você pode declarar alguns dos arquivos como `bytes` e alguns como `UploadFile`.

/// warning | Atenção

   *   <li>If there is any non-private constructor or non-private static factory method declared by
   *       {@code cls}, all non-private instance methods will be checked too using the instance
   *       created by invoking the constructor or static factory method.
   *   <li>If there is any non-private constructor or non-private static factory method declared by
   *       {@code cls}:
   *       <ul>

Hug ajudou a inspirar o **FastAPI** a usar anotações de tipo do Python para declarar parâmetros e para gerar um schema definindo a API automaticamente.

Hug inspirou **FastAPI** a declarar um parâmetro de `response` em funções para definir cabeçalhos e cookies.

///

This will make `tags` be a list, although it doesn't declare the type of the elements of the list.

## List fields with type parameter { #list-fields-with-type-parameter }

But Python has a specific way to declare lists with internal types, or "type parameters":

### Declare a `list` with a type parameter { #declare-a-list-with-a-type-parameter }

To declare types that have type parameters (internal types), like `list`, `dict`, `tuple`,

You can also declare singular values to be received as part of the body.