) -> list[str]:
    """
    Replace multiline code block `a` with block `b` leaving comments intact.

    Syntax of comments depends on the language of the code block.
    Raises ValueError if the blocks are not compatible (different languages or different number of lines).
    """

    start_line = block_a["start_line_no"]
    end_line_no = start_line + len(block_a["content"]) - 1

    // may change and break assumptions in this test [*]. This is not a bug in the implementation of
    // Ascii.equalsIgnoreCase(), but it is a signal that its documentation may need updating as
    // regards edge cases.

    // The Unicode point {@code 00df} is the lowercase form of sharp-S (ß), whose uppercase is "SS".
    assertThat("pa\u00dfword".toUpperCase()).isEqualTo("PASSWORD"); // [*]

    // may change and break assumptions in this test [*]. This is not a bug in the implementation of
    // Ascii.equalsIgnoreCase(), but it is a signal that its documentation may need updating as
    // regards edge cases.

    // The Unicode point {@code 00df} is the lowercase form of sharp-S (ß), whose uppercase is "SS".
    assertThat("pa\u00dfword".toUpperCase()).isEqualTo("PASSWORD"); // [*]

    }

    /**
     * Test backward compatibility with standard Base64
     *
     * @throws Exception
     */
    public void testBackwardCompatibility() throws Exception {
        // These test cases ensure that the new java.util.Base64 implementation
        // produces the same output as the old custom implementation

        // Test case 1: Standard padding
        final byte[] data1 = "abc".getBytes();

## Dataclasses in Nested Data Structures { #dataclasses-in-nested-data-structures }

You can also combine `dataclasses` with other type annotations to make nested data structures.

In some cases, you might still have to use Pydantic's version of `dataclasses`. For example, if you have errors with the automatically generated API documentation.

        assertEscaping(xmlEscaper, "\uFFFD", ch);
      }
    }

    // Test _all_ allowed characters (including surrogate values).
    for (char ch = 0x20; ch <= 0xFFFD; ch++) {
      // There are a small number of cases to consider, so just do it manually.
      if (ch == '&') {
        assertEscaping(xmlEscaper, "&amp;", ch);
      } else if (ch == '<') {
        assertEscaping(xmlEscaper, "&lt;", ch);
      } else if (ch == '>') {

/// danger | Обережно

Це «просунута» можливість.

Якщо ви тільки починаєте працювати з **FastAPI**, можливо, варто пропустити цей розділ.

///

## Випадки використання { #use-cases }

Деякі варіанти використання:

- Перетворення не-JSON тіл запитів на JSON (наприклад, [`msgpack`](https://msgpack.org/index.html)).
- Розпакування тіл запитів, стиснених gzip.
- Автоматичне логування всіх тіл запитів.

/// danger | Uyarı

Bu "ileri seviye" bir özelliktir.

**FastAPI**'ye yeni başlıyorsanız bu bölümü atlamak isteyebilirsiniz.

///

## Kullanım senaryoları { #use-cases }

Bazı kullanım senaryoları:

* JSON olmayan request body'leri JSON'a dönüştürmek (örn. [`msgpack`](https://msgpack.org/index.html)).
* gzip ile sıkıştırılmış request body'leri açmak (decompress).

		// We hold the lock, so we cannot call reqInfo.GetTagsMap().
		tags := make(map[string]any, len(reqInfo.tags))
		for _, t := range reqInfo.tags {
			tags[t.Key] = t.Val
		}
		entry.Tags = tags
		// ignore cases for ttfb when its zero.
		if timeToFirstByte != 0 {
			entry.API.TimeToFirstByte = strconv.FormatInt(timeToFirstByte.Nanoseconds(), 10) + "ns"
			entry.API.TimeToFirstByteInNS = strconv.FormatInt(timeToFirstByte.Nanoseconds(), 10)

    return delegate().descendingMap();
  }

  /**
   * A sensible implementation of {@link NavigableMap#descendingMap} in terms of the methods of this
   * {@code NavigableMap}. In many cases, you may wish to override {@link
   * ForwardingNavigableMap#descendingMap} to forward to this implementation or a subclass thereof.
   *
   * <p>In particular, this map iterates over entries with repeated calls to {@link