しかし、そうすると「最初の文字を大文字に変換するあのメソッド」を呼び出す必要があります。

それは`upper`でしたか？`uppercase`でしたか？それとも`first_uppercase`？または`capitalize`？

そして、古くからプログラマーの友人であるエディタで自動補完を試してみます。

関数の最初のパラメータ`first_name`を入力し、ドット(`.`)を入力してから、`Ctrl+Space`を押すと補完が実行されます。

しかし、悲しいことに、これはなんの役にも立ちません:

<img src="https://fastapi.tiangolo.com/img/python-types/image01.png">

### 型の追加

先ほどのコードから一行変更してみましょう。

以下の関数のパラメータ部分を:

```Python

     * the associated element if the associated count is one, and otherwise the associated element
     * followed by the characters " x " (space, x and space) followed by the count. Elements and
     * counts are converted to strings as by {@code String.valueOf}.
     */
    @Override
    public String toString() {
      String text = String.valueOf(getElement());

     * the associated element if the associated count is one, and otherwise the associated element
     * followed by the characters " x " (space, x and space) followed by the count. Elements and
     * counts are converted to strings as by {@code String.valueOf}.
     */
    @Override
    public String toString() {
      String text = String.valueOf(getElement());

            // Check for trailing spaces or periods (Windows doesn't handle well)
            if (component.endsWith(" ") || component.endsWith(".")) {
                throw new SmbException("Path component has trailing space or period: " + component);
            }
        }
    }

    /**
     * Validate host name
     */
    private boolean isValidHost(String host) {
        if (host == null || host.isEmpty()) {

        assertTrue(result.startsWith("Deny  "));
        // Hexdump.toHexString produces uppercase hex
        assertTrue(result.toLowerCase().contains("0x001f01ff"));
        // ACE.toString() outputs "Inherited " with 1 space
        assertTrue(result.contains("Inherited"));
        assertTrue(result.contains("This folder, subfolders and files"));
    }

    @Test
    @DisplayName("Test appendCol helper method")

   *
   * <p>CharStreams.copy was failing to clear its CharBuffer after each read call, which effectively
   * reduced the available size of the buffer each time a call to read didn't fill up the available
   * space in the buffer completely. In general this is a performance problem since the buffer size
   * is permanently reduced, but with certain Reader implementations it could also cause the buffer
   * size to reach 0, causing an infinite loop.

   *
   * <p>CharStreams.copy was failing to clear its CharBuffer after each read call, which effectively
   * reduced the available size of the buffer each time a call to read didn't fill up the available
   * space in the buffer completely. In general this is a performance problem since the buffer size
   * is permanently reduced, but with certain Reader implementations it could also cause the buffer
   * size to reach 0, causing an infinite loop.

     * for this entry is one, this is simply the string representation of the corresponding element.
     * Otherwise, it is the string representation of the element, followed by the three characters
     * {@code " x "} (space, letter x, space), followed by the count.
     */
    @Override
    String toString();
  }

  /**
   * Runs the specified action for each distinct element in this multiset, and the number of

            // Given
            byte[] buffer = new byte[10];

            // When & Then
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> response.readBytesWireFormat(buffer, 9) // Not enough space to read 2 bytes
            );
        }

        @Test
        @DisplayName("Should handle negative values as unsigned")
        void testReadBytesWireFormatNegativeAsUnsigned() {
            // Given

  /** Creates a new {@link Closer}. */
  public static Closer create() {
    return new Closer(SUPPRESSING_SUPPRESSOR);
  }

  @VisibleForTesting final Suppressor suppressor;

  // only need space for 2 elements in most cases, so try to use the smallest array possible
  private final Deque<Closeable> stack = new ArrayDeque<>(4);
  private @Nullable Throwable thrown;

  @VisibleForTesting