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？`first_uppercase`？`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="/img/python-types/image01.png">

### 型の追加 { #add-types }

先ほどのコードから一行変更してみましょう。

関数のパラメータである次の断片を、以下から:

```Python

   * uniform, the actual concurrency observed may vary. Ideally, you should choose a value to
   * accommodate as many threads as will ever concurrently modify the table. Using a significantly
   * higher value than you need can waste space and time, and a significantly lower value can lead
   * to thread contention. But overestimates and underestimates within an order of magnitude do not

        assertEquals("http://example.com/%D6sterreich", result);
    }

    @Test
    public void test_encodeUrl_fileProtocolWithSpecialChars() {
        // [ ] and % pass through; space would be encoded but %20 stays as-is (% is URL char)
        String result = DocumentUtil.encodeUrl("file:///data/[logs]/file%20name.txt");
        assertEquals("file:///data/[logs]/file%20name.txt", result);
    }

  /** 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

    // evict 9, 1, 2, 10
    getAll(cache, asList(15));
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).containsExactly(0, 6, 7, 8, 15);

    // fill empty space
    getAll(cache, asList(9));
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).containsExactly(0, 6, 7, 8, 15, 9);

    // evict 6
    getAll(cache, asList(1));

            // 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

    }

    @Test
    public void test_render_paragraphWithLineBreak() {
        String markdown = "Line 1  \nLine 2";
        String result = markdownRenderer.render(markdown);
        // Two spaces at end of line creates a line break
        assertTrue(result.contains("<br"));
    }

    @Test
    public void test_render_specialHtmlEntities() {

        value = "key.with.dots=value\nkey_with_underscores=value with spaces\nkey-with-dashes=value@#$%";
        paramMap = ParameterUtil.parse(value);
        assertEquals(3, paramMap.size());
        assertEquals("value", paramMap.get("key.with.dots"));
        assertEquals("value with spaces", paramMap.get("key_with_underscores"));
        assertEquals("value@#$%", paramMap.get("key-with-dashes"));
    }

     * 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());