例えば、<a href="https://docs.python.org/3/tutorial/inputoutput.html#reading-and-writing-files" class="external-link" target="_blank">ファイルを読み込むには`with`を使用することができます</a>:

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

その後の`open("./somefile.txt")`は「コンテキストマネージャ」と呼ばれるオブジェクトを作成します。

`with`ブロックが終了すると、例外があったとしてもファイルを確かに閉じます。

`yield`を依存関係を作成すると、**FastAPI** は内部的にそれをコンテキストマネージャに変換し、他の関連ツールと組み合わせます。

        "Multiple entries with same " + conflictDescription + ": " + entry1 + " and " + entry2);
  }

  /**
   * A builder for creating immutable map instances, especially {@code public static final} maps
   * ("constant maps"). Example:
   *
   * {@snippet :
   * static final ImmutableMap<String, Integer> WORD_TO_INT =
   *     new ImmutableMap.Builder<String, Integer>()
   *         .put("one", 1)
   *         .put("two", 2)

特定の（あまり一般的ではないかもしれない）ケースで、受け付けるクッキーを**制限**する必要があるかもしれません。

あなたのAPIは独自の <abbr title="念のためですが、これはジョークです。クッキー同意とは関係ありませんが、APIでさえ不適切なクッキーを拒否できるとは愉快ですね。クッキーでも食べてください。🍪 （原文: This is a joke, just in case. It has nothing to do with cookie consents, but it's funny that even the API can now reject the poor cookies. Have a cookie. 🍪）">クッキー同意</abbr> を管理する能力を持っています。 🤪🍪

Pydanticのモデルの Configuration を利用して、 `extra` フィールドを `forbid` とすることができます。

            throw new ThemeException("Theme name is empty: " + artifact);
        }
        return themeName;
    }

    /**
     * Recursively deletes a directory and all its contents.
     * Does not throw exceptions, only logs warnings if deletion fails.
     *
     * @param dir the directory to delete
     */
    protected void closeQuietly(final Path dir) {

        "Multiple entries with same " + conflictDescription + ": " + entry1 + " and " + entry2);
  }

  /**
   * A builder for creating immutable map instances, especially {@code public static final} maps
   * ("constant maps"). Example:
   *
   * {@snippet :
   * static final ImmutableMap<String, Integer> WORD_TO_INT =
   *     new ImmutableMap.Builder<String, Integer>()
   *         .put("one", 1)
   *         .put("two", 2)

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

Internamente, `open("./somefile.txt")` crea un objeto llamado "Context Manager".

Cuando el bloque `with` termina, se asegura de cerrar el archivo, incluso si hubo excepciones.

   * objects, and the array itself, can be null. That is for programmer convenience, when the
   * objects come from factory methods that are themselves {@code @Nullable}. In reality neither the
   * array nor its contents can be null, but it is not useful to force the use of {@code
   * requireNonNull} or the like just to assert that.
   *
   * <p>{@code EqualsTester} will always check that every object it is given returns false from

We can't rely on application threads to read data from the socket. Application threads are transient: sometimes they're reading and writing and sometimes they're off doing application-layer things. But the socket is permanent, and it needs constant attention: we dispatch all incoming frames so the connection is good-to-go when the application layer needs it.

So we have a dedicated thread for every socket that just reads frames and dispatches them.

        }
    }

    // Test constructor
    public void test_constructor() {
        CorsFilter filter = new CorsFilter();
        assertNotNull(filter);
    }

    // Test OPTIONS constant
    public void test_optionsConstant() {
        assertEquals("OPTIONS", CorsFilter.OPTIONS);
    }

    // Helper classes for testing

        }
    }

    @Nested
    @DisplayName("Pipe Flags Tests")
    class PipeFlagsTests {

        @Test
        @DisplayName("Should have correct pipe flags constant")
        void testPipeFlags() {
            int expectedFlags = (0x2019F << 16) | SmbPipeResource.PIPE_TYPE_RDWR | SmbPipeResource.PIPE_TYPE_DCE_TRANSACT;
            assertEquals(expectedFlags, DcerpcPipeHandle.pipeFlags);