Luego podemos usar `secrets.compare_digest()` para asegurar que `credentials.username` es `"stanleyjobson"`, y que `credentials.password` es `"swordfish"`.

{* ../../docs_src/security/tutorial007_an_py39.py hl[1,12:24] *}

Esto sería similar a:

```Python
if not (credentials.username == "stanleyjobson") or not (credentials.password == "swordfish"):
    # Return some error
    ...
```

Then we can use `secrets.compare_digest()` to ensure that `credentials.username` is `"stanleyjobson"`, and that `credentials.password` is `"swordfish"`.

{* ../../docs_src/security/tutorial007_an_py39.py hl[1,12:24] *}

This would be similar to:

```Python
if not (credentials.username == "stanleyjobson") or not (credentials.password == "swordfish"):
    # Return some error
    ...
```

Por ejemplo, podrías añadir un custom header `X-Process-Time` que contenga el tiempo en segundos que tomó procesar la request y generar una response:

{* ../../docs_src/middleware/tutorial001.py hl[10,12:13] *}

/// tip | Consejo

*path operation* が `request` を受け取る前に、 `request` とともに実行されるコードを追加できます。

また `response` が生成された後、それを返す前にも追加できます。

例えば、リクエストの処理とレスポンスの生成にかかった秒数を含むカスタムヘッダー `X-Process-Time` を追加できます:

{* ../../docs_src/middleware/tutorial001.py hl[10,12:13] *}

## その他のミドルウェア

他のミドルウェアの詳細については、[高度なユーザーガイド: 高度なミドルウェア](../advanced/middleware.md){.internal-link target=_blank}を参照してください。

  @Test
  fun sameKeypairSamePin() {
    val heldCertificateA2 =
      HeldCertificate
        .Builder()
        .keyPair(certA1.keyPair)
        .serialNumber(101L)
        .build()
    val keypairACertificate2Pin = pin(heldCertificateA2.certificate)
    val heldCertificateB2 =
      HeldCertificate
        .Builder()
        .keyPair(certB1.keyPair)
        .serialNumber(201L)

/*
 * Copyright (C) 2012 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License

          <version>1.1.0+</version>
          <description>
            A version range which specifies the supported Java versions. A version range can either use the usual mathematical syntax "[2.0.10,2.1.0),[3.0,)" or use a single version "2.2.1". The latter is a short form for "[2.2.1,)", i.e. denotes the minimum version required.
            @since Maven 4.0.0-alpha-3
          </description>
          <type>String</type>

    testReverse(new double[] {1}, 0, 1, new double[] {1});
    testReverse(new double[] {1, 2}, 0, 2, new double[] {2, 1});
    testReverse(new double[] {3, 1, 1}, 0, 2, new double[] {1, 3, 1});
    testReverse(new double[] {3, 1, 1}, 0, 1, new double[] {3, 1, 1});
    testReverse(new double[] {-1, 1, -2, 2}, 1, 3, new double[] {-1, -2, 1, 2});
  }

        multimap.putAll("bar", asList(4, 5));
        multimap.putAll("foo", asList(6));
        multimap.putAll("baz", asList(7, 8));
        multimap.putAll("dog", asList(9));
        multimap.putAll("bar", asList(10, 11));
        multimap.putAll("cat", asList(12, 13, 14));
        return multimap.keySet().iterator();
      }

      @Override
      protected void verify(List<String> elements) {

  public void testManyEqual() {
    assertThat(
            ComparisonChain.start()
                .compare(1, 1)
                .compare(1L, 1L)
                .compareFalseFirst(true, true)
                .compare(1.0, 1.0)
                .compare(1.0f, 1.0f)
                .compare("a", "a", Ordering.usingToString())
                .result())
        .isEqualTo(0);
  }

  public void testShortCircuitLess() {
    assertThat(