* <li>Information needed to find the artifact file in a repository including extension and classifier</li>
 * <li>Information on how to use the artifact as a dependency: whether to add it to the classpath, whether to load its
 * dependencies transitively</li>
 * </ul>
 *
 */
public interface ArtifactHandler {
    @Deprecated
    String ROLE = ArtifactHandler.class.getName();

    /**
     * Returns the file name extension of the artifact;

    params=[
        pytest.param("tutorial006_py39"),
        pytest.param("tutorial006_an_py39"),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.dependencies.{request.param}")

    client = TestClient(mod.app)
    return client


def test_get_no_headers(client: TestClient):
    response = client.get("/items/")
    assert response.status_code == 422, response.text

///

### Tente os WebSockets com dependências { #try-the-websockets-with-dependencies }

Se seu arquivo for nomeado `main.py`, execute sua aplicação com:

<div class="termy">

```console
$ fastapi dev main.py

  - [Changelog since v1.30.13](#changelog-since-v13013)
  - [Changes by Kind](#changes-by-kind)
    - [Feature](#feature)
    - [Bug or Regression](#bug-or-regression)
  - [Dependencies](#dependencies)
    - [Added](#added)
    - [Changed](#changed)
    - [Removed](#removed)
- [v1.30.13](#v13013)
  - [Downloads for v1.30.13](#downloads-for-v13013)
    - [Source Code](#source-code-1)

    - [Server Binaries](#server-binaries)
    - [Node Binaries](#node-binaries)
    - [Container Images](#container-images)
  - [Changelog since v1.21.13](#changelog-since-v12113)
  - [Dependencies](#dependencies)
    - [Added](#added)
    - [Changed](#changed)
    - [Removed](#removed)
- [v1.21.13](#v12113)
  - [Downloads for v1.21.13](#downloads-for-v12113)
    - [Source Code](#source-code-1)

Hay utilidades para configurarlo fácilmente que puedes usar directamente en tu aplicación de **FastAPI** (proporcionadas por Starlette).

## Instala dependencias { #install-dependencies }

Asegúrate de crear un [entorno virtual](../virtual-environments.md){.internal-link target=_blank}, activarlo e instalar `jinja2`:

<div class="termy">

```console
$ pip install jinja2

import warnings

import pytest
from fastapi import FastAPI, File, Form, UploadFile
from fastapi.dependencies.utils import (
    multipart_incorrect_install_error,
    multipart_not_installed_error,
)


def test_incorrect_multipart_installed_form(monkeypatch):
    monkeypatch.setattr("python_multipart.__version__", "0.0.12")
    with warnings.catch_warnings(record=True):
        warnings.simplefilter("always")

    params=[
        pytest.param("tutorial012_py39"),
        pytest.param("tutorial012_an_py39"),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.dependencies.{request.param}")

    client = TestClient(mod.app)
    return client


def test_get_no_headers_items(client: TestClient):
    response = client.get("/items/")

  - [Changelog since v1.32.10](#changelog-since-v13210)
  - [Changes by Kind](#changes-by-kind)
    - [Feature](#feature)
    - [Bug or Regression](#bug-or-regression)
  - [Dependencies](#dependencies)
    - [Added](#added)
    - [Changed](#changed)
    - [Removed](#removed)
- [v1.32.10](#v13210)
  - [Downloads for v1.32.10](#downloads-for-v13210)
    - [Source Code](#source-code-1)

Maven projects.

```xml
<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>com.squareup.okhttp3</groupId>
      <artifactId>okhttp-bom</artifactId>
      <version>5.2.0</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>
```



```xml
<dependency>