## 任意 `dict` 构成的请求体

你也可以将请求体声明为使用某类型的键和其他类型值的 `dict`。

无需事先知道有效的字段/属性（在使用 Pydantic 模型的场景）名称是什么。

如果你想接收一些尚且未知的键，这将很有用。

---

其他有用的场景是当你想要接收其他类型的键时，例如 `int`。

这也是我们在接下来将看到的。

在下面的例子中，你将接受任意键为 `int` 类型并且值为 `float` 类型的 `dict`：

//// tab | Python 3.9+

```Python hl_lines="7"
{!> ../../docs_src/body_nested_models/tutorial009_py39.py!}
```

////

@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}


@app.put("/items/{item_id}")
def update_item(item_id: int, item: Item):
    return {"item_name": item.name, "item_id": item_id}
```

}

// Msgsize returns the size of an empty JSON object.
func (j *JSON[T]) Msgsize() int {
	return j.p.emptySz
}

// NoPayload is a type that can be used for handlers that do not use a payload.
type NoPayload struct{}

// Msgsize returns 0.
func (p NoPayload) Msgsize() int {
	return 0
}

// UnmarshalMsg satisfies the interface, but is a no-op.

  /**
   * Notification that the receiving stream flow control window has changed.
   * [WindowCounter] generally carries the client view of total and acked bytes.
   */
  fun receivingStreamWindowChanged(
    streamId: Int,
    windowCounter: WindowCounter,
    bufferSize: Long,
  )

  /**
   * Notification that the receiving connection flow control window has changed.

@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface TestBiMapGenerator<K extends @Nullable Object, V extends @Nullable Object>
    extends TestContainerGenerator<BiMap<K, V>, Entry<K, V>> {
  K[] createKeyArray(int length);

  V[] createValueArray(int length);

package jcifs.smb1.dcerpc.msrpc;

import jcifs.smb1.dcerpc.*;

public class MsrpcSamrOpenAlias extends samr.SamrOpenAlias {

    public MsrpcSamrOpenAlias(SamrDomainHandle handle,
                    int access,
                    int rid,
                    SamrAliasHandle aliasHandle) {
        super(handle, access, rid, aliasHandle);
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb1.dcerpc.ndr;

public class NdrSmall extends NdrObject {

    public int value;

    public NdrSmall(int value) {
        this.value = value & 0xFF;
    }

    public void encode(NdrBuffer dst) throws NdrException {
        dst.enc_ndr_small(value);
    }

      assertTrue(Thread.holdsLock(mutex));
      return delegate.equals(o);
    }

    @Override
    public int hashCode() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.hashCode();
    }

    @Override
    public int size() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.size();
    }

    @Override
    public boolean isEmpty() {

    this.withLock {
      return Collections.unmodifiableList(runningSyncCalls + runningAsyncCalls.map { it.call })
    }

  fun queuedCallsCount(): Int = this.withLock { readyAsyncCalls.size }

  fun runningCallsCount(): Int = this.withLock { runningAsyncCalls.size + runningSyncCalls.size }

  @JvmName("-deprecated_executorService")
  @Deprecated(
    message = "moved to val",

            });
            return redirectToRoot();
        }
    }

    protected HtmlResponse doMove(final SearchForm form, final int move) {
        int start = fessConfig.getPagingSearchPageStartAsInteger();
        if (form.pn != null) {
            int pageNumber = form.pn;
            if (pageNumber > 0) {
                pageNumber = pageNumber + move;
                if (pageNumber < 1) {