List<Integer> completeLengthChecks;
    int baseStackDepth;
    ExecutorService service = newFixedThreadPool(5);
    try {
      // Avoid counting frames from the executor itself, or the ExecutionSequencer
      baseStackDepth =
          serializer.submit(() -> Thread.currentThread().getStackTrace().length, service).get();

Por ejemplo, cuando escribes `python` en la terminal, el sistema operativo busca un programa llamado `python` en el **primer directorio** de esa lista.

Si lo encuentra, entonces lo **utilizará**. De lo contrario, continúa buscando en los **otros directorios**.

        when(mockFileHandle.getFileId()).thenReturn(new byte[16]);

        when(mockFile.openUnshared(anyInt(), anyInt(), anyInt(), anyInt(), anyInt())).thenReturn(mockFileHandle);

        // Mock responses for successful writes to test boundary conditions
        when(mockTreeHandle.send(any(Smb2WriteRequest.class), any())).thenReturn(mockWriteResponse);
        when(mockWriteResponse.getCount()).thenReturn(10, 5); // Return proper byte counts

İlk type parameter, `dict`'in key'leri içindir.

İkinci type parameter, `dict`'in value'ları içindir:

{* ../../docs_src/python_types/tutorial008_py310.py hl[1] *}

Bu şu anlama gelir:

* `prices` değişkeni bir `dict`'tir:
    * Bu `dict`'in key'leri `str` tipindedir (örneğin her bir öğenin adı).
    * Bu `dict`'in value'ları `float` tipindedir (örneğin her bir öğenin fiyatı).

#### Union { #union }

Перший параметр типу для ключів у `dict`.

Другий параметр типу для значень у `dict`:

{* ../../docs_src/python_types/tutorial008_py310.py hl[1] *}

Це означає:

* Змінна `prices` — це `dict`:
    * Ключі цього `dict` мають тип `str` (скажімо, назва кожного предмета).
    * Значення цього `dict` мають тип `float` (скажімо, ціна кожного предмета).

#### Union { #union }

		t.Errorf("%s: buf.Len() == %d, len(s) == %d", testname, buf.Len(), len(s))
	}

	if string(bytes) != s {
		t.Errorf("%s: string(buf.Bytes()) == %q, s == %q", testname, string(bytes), s)
	}
}

// Fill buf through n writes of string fus.
// The initial contents of buf corresponds to the string s;
// the result is the final contents of buf returned as a string.

			if disk == nil || !disk.IsOnline() {
				parityDrives++
				offlineDrives++
				continue
			}
		}

		if offlineDrives >= (len(storageDisks)+1)/2 {
			// if offline drives are more than 50% of the drives
			// we have no quorum, we shouldn't proceed just
			// fail at that point.
			return ObjectInfo{}, toObjectErr(errErasureWriteQuorum, bucket, object)
		}

#### Dict { #dict }

定義 `dict` 時，你需要傳入 2 個以逗號分隔的型別參數。

第一個型別參數是 `dict` 的鍵（key）。

第二個型別參數是 `dict` 的值（value）：

{* ../../docs_src/python_types/tutorial008_py310.py hl[1] *}

這代表：

* 變數 `prices` 是個 `dict`：
    * 這個 `dict` 的鍵是 `str`（例如每個項目的名稱）。
    * 這個 `dict` 的值是 `float`（例如每個項目的價格）。

#### Union { #union }

你可以宣告一個變數可以是「多種型別」中的任一種，例如 `int` 或 `str`。

                }
            }
            return new String(buf, 0, size);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Writes the specified byte array to the file at the given pathname.
     *
     * @param pathname
     *            The path to the file.
     * @param bytes
     *            The byte array to write.
     */

        @DisplayName("Should calculate size correctly")
        void testSizeCalculation() {
            // Note: The size() method in EncryptionNegotiateContext returns 4 as base,
            // while encode() only writes 2 bytes for the count field.
            // This appears to be an implementation inconsistency.
            context = new EncryptionNegotiateContext(mockConfig, new int[3]);