import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.AbstractCollectionTester;
import com.google.common.collect.testing.MinimalCollection;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import java.util.Collection;

## Um aplicativo com callbacks { #an-app-with-callbacks }

Vamos ver tudo isso com um exemplo.

Imagine que você desenvolve um aplicativo que permite criar faturas.

Essas faturas terão um `id`, `title` (opcional), `customer` e `total`.

O usuário da sua API (um desenvolvedor externo) criará uma fatura na sua API com um request POST.

Então sua API irá (vamos imaginar):

 * limitations under the License.
 */

package com.google.common.collect.testing;

import static com.google.common.collect.testing.Helpers.copyToList;
import static com.google.common.collect.testing.features.CollectionFeature.DESCENDING_VIEW;
import static com.google.common.collect.testing.features.CollectionFeature.SUBSET_VIEW;

import com.google.common.annotations.GwtIncompatible;

        .Builder()
        .url("https://sni.cloudflaressl.com/cdn-cgi/trace")
        .header("Host", "cloudflare-dns.com")
        .build()
    client.newCall(request).execute().use { response ->
      assertThat(response.code).isEqualTo(200)
      assertThat(response.protocol).isEqualTo(Protocol.HTTP_2)

      assertThat(response.body.string()).contains("h=cloudflare-dns.com")
    }
  }

  @Test
  fun getWithDns() {

[BoringSSL]: https://boringssl.googlesource.com/boringssl/
[Bouncy Castle]: https://www.bouncycastle.org/java.html
[Conscrypt]: https://www.conscrypt.org/
[Corretto]: https://github.com/corretto/amazon-corretto-crypto-provider
[GraalVM]: https://www.graalvm.org/
[OpenJDK]: https://openjdk.java.net/groups/security/
[OpenJSSE]: https://github.com/openjsse/openjsse
[OpenSSL]: https://www.openssl.org/

GitHub-Repository: <a href="https://github.com/tiangolo/full-stack-fastapi-template" class="external-link" target="_blank">Full Stack FastAPI Template</a>

## Full Stack FastAPI Template – Technologiestack und Funktionen { #full-stack-fastapi-template-technology-stack-and-features }

- ⚡ [**FastAPI**](https://fastapi.tiangolo.com/de) für die Python-Backend-API.

Репозиторий GitHub: <a href="https://github.com/tiangolo/full-stack-fastapi-template" class="external-link" target="_blank">Full Stack FastAPI Template</a>

## Шаблон Full Stack FastAPI — Технологический стек и возможности { #full-stack-fastapi-template-technology-stack-and-features }

- ⚡ [**FastAPI**](https://fastapi.tiangolo.com/ru) для бэкенд‑API на Python.
    - 🧰 [SQLModel](https://sqlmodel.tiangolo.com) для взаимодействия с SQL‑базой данных на Python (ORM).

{* ../../docs_src/security/tutorial001_an_py39.py hl[12] *}

Mas isso ainda não é tão útil.

Vamos fazer com que ele nos forneça o usuário atual.

## Criar um modelo de usuário { #create-a-user-model }

Primeiro, vamos criar um modelo de usuário com Pydantic.

Da mesma forma que usamos o Pydantic para declarar corpos, podemos usá-lo em qualquer outro lugar:

 * limitations under the License.
 */

package com.google.common.testing;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Throwables.throwIfUnchecked;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.fail;

import com.google.common.annotations.GwtIncompatible;

 */

package com.google.common.math;

import static com.google.common.math.MathBenchmarking.ARRAY_MASK;
import static com.google.common.math.MathBenchmarking.ARRAY_SIZE;
import static com.google.common.math.MathBenchmarking.RANDOM_SOURCE;
import static java.math.RoundingMode.CEILING;

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;