directamente <a href="https://anyio.readthedocs.io/en/stable/" class="external-link" target="_blank">AnyIO</a> para tus casos de uso avanzados de concurrencia que requieran patrones más avanzados en tu propio código.

E incluso si no estuvieras usando FastAPI, también podrías escribir tus propias aplicaciones asíncronas con <a href="https://anyio.readthedocs.io/en/stable/" class="external-link" target="_blank">AnyIO</a> para ser altamente compatibles y obtener sus beneficios (p.ej. *concurrencia...

    assertThat(routeSelector.hasNext()).isFalse()
  }

  @Test fun proxyDnsFailureContinuesToNextProxy() {
    val address = factory.newAddress()
    proxySelector.proxies.add(proxyA)
    proxySelector.proxies.add(proxyB)
    proxySelector.proxies.add(proxyA)
    val routeSelector = newRouteSelector(address)
    proxySelector.assertRequests(address.url.toUri())
    assertThat(routeSelector.hasNext()).isTrue()

class FakeProxySelector : ProxySelector() {
  val proxies: MutableList<Proxy> = mutableListOf()

  fun addProxy(proxy: Proxy): FakeProxySelector {
    proxies.add(proxy)
    return this
  }

  override fun select(uri: URI): List<Proxy> {
    // Don't handle 'socket' schemes, which the RI's Socket class may request (for SOCKS).
    return if (uri.scheme == "http" || uri.scheme == "https") proxies else listOf(Proxy.NO_PROXY)
  }

Confira as dicas de anotação no código acima para ver mais detalhes específicos.

## Saiba Mais { #learn-more }

Você também pode combinar `dataclasses` com outros modelos Pydantic, herdar deles, incluí-los em seus próprios modelos, etc.

Para saber mais, confira a <a href="https://docs.pydantic.dev/latest/concepts/dataclasses/" class="external-link" target="_blank">documentação do Pydantic sobre dataclasses</a>.

## Versão { #version }

Mas quando se checa _benchmarks_ e comparações você deveria ter o seguinte em mente.

## Benchmarks e velocidade { #benchmarks-and-speed }

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IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

     * with the wrong proxies.
     *
     * @param repositories The repositories into which to inject the proxy information, may be {@code null}.
     * @param proxies The available proxies, may be {@code null}.
     */
    void injectProxy(List<ArtifactRepository> repositories, List<org.apache.maven.settings.Proxy> proxies);

    /**