### ⚙️ 👆 🔖

⚙️ `tags` 🔢 ⏮️ 👆 *➡ 🛠️* (& `APIRouter`Ⓜ) 🛠️ 👫 🎏 🔖:

{* ../../docs_src/metadata/tutorial004.py hl[21,26] *}

/// info

✍ 🌅 🔃 🔖 [➡ 🛠️ 📳](path-operation-configuration.md#_3){.internal-link target=_blank}.

///

### ✅ 🩺

🔜, 🚥 👆 ✅ 🩺, 👫 🔜 🎦 🌐 🌖 🗃:

<img src="/img/tutorial/metadata/image02.png">

### ✔ 🔖

✔ 🔠 🔖 🗃 📖 🔬 ✔ 🎦 🩺 🎚.

import com.google.common.primitives.Ints;
import java.util.Random;
import java.util.concurrent.atomic.AtomicLong;
import org.jspecify.annotations.NullUnmarked;

/**
 * Single-threaded benchmark for {@link LoadingCache}.
 *
 * @author Charles Fry
 */
@NullUnmarked
public class LoadingCacheSingleThreadBenchmark {
  @Param({"1000", "2000"})
  int maximumSize;

  @Param("5000")
  int distinctKeys;

import com.google.common.testing.NullPointerTester;
import java.lang.ref.WeakReference;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link Interners}.
 *
 * @author Kevin Bourrillion
 */
@NullUnmarked
public class InternersTest extends TestCase {

  public void testStrong_simplistic() {
    String canonical = "a";
    String not = new String("a");

import com.google.common.annotations.GwtIncompatible;
import com.google.common.testing.EqualsTester;
import java.util.Objects;
import org.jspecify.annotations.NullMarked;

/**
 * Tests {@link SingletonImmutableTable}.
 *
 * @author Gregory Kick
 */
@GwtCompatible
@NullMarked
public class SingletonImmutableTableTest extends AbstractImmutableTableTest {

import java.io.ByteArrayOutputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.charset.Charset;
import java.util.Arrays;

/**
 * Skeleton implementation of {@link HashFunction}, appropriate for non-streaming algorithms. All
 * the hash computation done using {@linkplain #newHasher()} are delegated to the {@linkplain
 * #hashBytes(byte[], int, int)} method.
 *
 * @author Dimitris Andreou

import java.util.Collection;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code containsAll()} operations on a collection. Can't be
 * invoked directly; please see {@link
 * com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Kevin Bourrillion
 * @author Chris Povirk
 */
@GwtCompatible

$VERSION
$VERSION-dev
$VERSION-venv
EOF
else
  cat >pythons.txt <<EOF
$VERSION
$VERSION-dev
$VERSION-venv
$VERSION-distutils
EOF
fi

/setup.packages.sh pythons.txt

# Re-link pyconfig.h from x86_64-linux-gnu into the devtoolset directory
# for any Python version present
pushd /usr/include/x86_64-linux-gnu
for f in $(ls | grep python); do
  # set up symlink for devtoolset-9

 * to provide DNS resolution with support for Internationalized Domain Names (IDN).
 * It converts Unicode domain names to ASCII Compatible Encoding (ACE) using the
 * {@link java.net.IDN} class.
 *
 * <p>This class allows setting a custom flag for the IDN conversion and a custom
 * encoding for URL decoding.</p>
 *
 * <p>Example usage:</p>
 * <pre>
 * {@code

* **データベースモデル**はおそらくハッシュ化されたパスワードが必要になるでしょう。

/// danger | 危険

ユーザーの平文のパスワードは絶対に保存しないでください。常に認証に利用可能な「安全なハッシュ」を保存してください。

知らない方は、[セキュリティの章](security/simple-oauth2.md#password-hashing){.internal-link target=_blank}で「パスワードハッシュ」とは何かを学ぶことができます。

///

## 複数のモデル

ここでは、パスワードフィールドをもつモデルがどのように見えるのか、また、どこで使われるのか、大まかなイメージを紹介します:

{* ../../docs_src/extra_models/tutorial001.py hl[9,11,16,22,24,29:30,33:35,40:41] *}

)
```

/// info | Informação

Para uma explicação mais completa de `**user_dict`, verifique [a documentação para **Extra Models**](../extra-models.md#about-user_indict){.internal-link target=_blank}.

///

## Retorne o token

A resposta do endpoint `token` deve ser um objeto JSON.