class CommonQueryParams:
    def __init__(self, q: str | None = None, skip: int = 0, limit: int = 100):
        self.q = q
        self.skip = skip
        self.limit = limit


@app.get("/items/")
async def read_items(commons=Depends(CommonQueryParams)):
    response = {}
    if commons.q:
        response.update({"q": commons.q})
    items = fake_items_db[commons.skip : commons.skip + commons.limit]
    response.update({"items": items})

	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgActiveWorkerStat(b *testing.B) {
	v := ActiveWorkerStat{}
	b.ReportAllocs()
	b.ResetTimer()

   * Horizontal Tabulation ('\t'): A format effector which controls the movement of the printing
   * position to the next in a series of predetermined positions along the printing line.
   * (Applicable also to display devices and the skip function on punched cards.)
   *
   * @since 8.0
   */
  public static final byte HT = 9;

  /**
   * Line Feed ('\n'): A format effector which controls the movement of the printing position to the

En el ejemplo anterior, tienen valores por defecto de `skip=0` y `limit=10`.

Entonces, ir a la URL:

```
http://127.0.0.1:8000/items/
```

sería lo mismo que ir a:

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

Pero si vas a, por ejemplo:

```
http://127.0.0.1:8000/items/?skip=20
```

Los valores de los parámetros en tu función serán:

* `skip=20`: porque lo configuraste en la URL

No exemplo acima eles tem valores padrão de `skip=0` e `limit=10`.

Então, se você for até a URL:

```
http://127.0.0.1:8000/items/
```

Seria o mesmo que ir para:

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

Mas, se por exemplo você for para:

```
http://127.0.0.1:8000/items/?skip=20
```

Os valores dos parâmetros na sua função serão:

* `skip=20`: Por que você definiu isso na URL

* 自動文件

## 預設值 { #defaults }

由於查詢參數不是路徑的固定部分，因此可以是選填並具有預設值。

在上面的例子中，預設值為 `skip=0` 與 `limit=10`。

因此，造訪下列 URL：

```
http://127.0.0.1:8000/items/
```

等同於造訪：

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

但如果你改為造訪：

```
http://127.0.0.1:8000/items/?skip=20
```

函式中的參數值會是：

* `skip=20`：因為你在 URL 中設定了它
* `limit=10`：因為那是預設值

## 選用參數 { #optional-parameters }

    /*
     * com.google.common is starting to rely on type-use annotations, which aren't visible under
     * Android VMs and in open-source guava-android. So we skip testing there.
     */
    if (Reflection.getPackageName(testedClass).startsWith("com.google.common")) {
      return;
    }
    if (isPrimitiveOrNullable(invokable.getParameters().get(paramIndex))) {

        }
      }
      drainQueue();
      return created;
    }

    // N.B. Draining the queue is only necessary to ensure that we don't accumulate empty references
    // in the array. We could skip this if we decide we don't care about holding on to Reference
    // objects indefinitely.
    private void drainQueue() {
      Reference<? extends L> ref;
      while ((ref = queue.poll()) != null) {

	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgLockArgs(b *testing.B) {
	v := LockArgs{}
	b.ReportAllocs()
	b.ResetTimer()

	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgxlMetaDataDirDecoder(b *testing.B) {
	v := xlMetaDataDirDecoder{}
	b.ReportAllocs()
	b.ResetTimer()