async def read_item(current_user: dict = Depends(get_current_user)):
    return {"message": "Hello World"}
```

## Do not use Ellipsis for *path operations* or Pydantic models

Do not use `...` as a default value for required parameters, it's not needed and not recommended.

Do this, without Ellipsis (`...`):

```python
from typing import Annotated

from fastapi import FastAPI, Query

			t.Fatalf("%+v: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
		}
	}
}

// Test objectPartIndex(). generates a sample FileInfo data and asserts
// the output of objectPartIndex() with the expected value.
func TestObjectPartIndex(t *testing.T) {
	testCases := []struct {
		partNum       int
		expectedIndex int
	}{
		{2, 1},
		{1, 0},
		{5, 3},
		{4, 2},
		{7, 4},
	}

	// Setup.

            int maxReferralLevel = -1;

            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

            assertNotNull(buffer);
            // Negative values will be cast to unsigned when encoded
            assertEquals(4 + 2 * path.length(), buffer.size());
        }
    }

    @Nested
    @DisplayName("Size Calculation Tests")
    class SizeTests {

		*/
	}, {
		file: "testdata/trailing-slash.tar",
		tests: []testFnc{
			testHeader{Header{Name: strings.Repeat("123456789/", 30)}, nil},
			testClose{nil},
		},
	}, {
		// Automatically promote zero value of Typeflag depending on the name.
		file: "testdata/file-and-dir.tar",
		tests: []testFnc{
			testHeader{Header{Name: "small.txt", Size: 5}, nil},
			testWrite{"Kilts", 5, nil},
			testHeader{Header{Name: "dir/"}, nil},

		gotv := got.Cache[wkey]
		if !equalAsJSON(gotv, wval) {
			t.Errorf("deserialize mismatch, key %v\nwant: %#v\ngot:  %#v", wkey, wval, gotv)
		}
	}
}

// equalAsJSON returns whether the values are equal when encoded as JSON.
func equalAsJSON(a, b any) bool {
	aj, err := json.Marshal(a)
	if err != nil {
		panic(err)
	}
	bj, err := json.Marshal(b)
	if err != nil {
		panic(err)
	}

    ListeningScheduledExecutorService service = listeningDecorator(delegate);
    ListenableFuture<Integer> future = service.schedule(Callables.returning(42), 1, MILLISECONDS);

    /*
     * Wait not just until the Future's value is set (as in future.get()) but
     * also until ListeningScheduledExecutorService's wrapper task is done
     * executing listeners, as detected by yielding control to afterExecute.
     */
    completed.await();

 * </p>
 * <p>
 * If the source object is a {@link Date}, {@link Calendar}, or {@link java.sql.Date}, the converted object is created using the millisecond value of the source.
 * For other types, the converted object is created from the string representation of the source object.
 * </p>
 * <p>

            assertArrayEquals(expectedName, actualName);
            verify(request, times(1)).getName();
        }

        @Test
        @DisplayName("getName() should handle null return value")
        void testGetNameWithNull() {
            CreateContextRequest request = mock(CreateContextRequest.class);
            when(request.getName()).thenReturn(null);

            byte[] actualName = request.getName();

* 變數 `items_s` 是一個 `set`，而其中每個項目都是 `bytes` 型別。

#### 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 }

        include_in_schema: bool = True,
        json_schema_extra: dict[str, Any] | None = None,
        **extra: Any,
    ):
        assert default is ..., "Path parameters cannot have a default value"
        self.in_ = self.in_
        super().__init__(
            default=default,
            default_factory=default_factory,
            annotation=annotation,
            alias=alias,