public RequestOptionCall<DeleteRequestBuilder> deleteOption() {
            return deleteOption;
        }
    }

    @FunctionalInterface
    public interface RequestOptionCall<OP> {
        void callback(OP op);
    }

 */

/**
 * An abstract class for NTLM authentication in SMB1 protocol.
 * Provides a callback mechanism for retrieving user credentials when authentication is required.
 */
public abstract class NtlmAuthenticator {

    /**
     * Default constructor.
     */
    protected NtlmAuthenticator() {

s/41584243/runtimeerror-task-attached-to-a-different-loop" class="external-link" target="_blank">MotorClient do MongoDB</a>) Lembre-se de instanciar objetos que precisam de um loop de eventos (*event loop*) apenas em funções assíncronas, e.g. um callback `@app.on_event("startup")`.

///...

///

### 添加回调路由

至此，在上文创建的回调路由里就包含了*回调路径操作*（外部开发者要在外部 API 中实现）。

现在使用 API *路径操作装饰器*的参数 `callbacks`，从回调路由传递属性 `.routes`（实际上只是路由/路径操作的**列表**）：

{* ../../docs_src/openapi_callbacks/tutorial001.py hl[36] *}

/// tip | 提示

注意，不能把路由本身（`invoices_callback_router`）传递给 `callback=`，要传递 `invoices_callback_router.routes` 中的 `.routes` 属性。

///

### 查看文档

          type: Class<T>,
          computeIfAbsent: () -> T,
        ): T = TODO()

        override fun clone(): Call = TODO()
      }
  }

  @Test
  fun callback() {
    val callback =
      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) = TODO()

        override fun onResponse(
          call: Call,

## Version 3.7.0

_2017-04-15_

 *  **OkHttp no longer recovers from TLS handshake failures by attempting a TLSv1 connection.**
    The fallback was necessary for servers that implemented version negotiation incorrectly. Now
    that 99.99% of servers do it right this fallback is obsolete.
 *  Fix: Do not honor cookies set on a public domain. Previously a malicious site could inject

      client.newCallWithListener(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )
    val completionLatch = CountDownLatch(1)
    val callback: Callback =
      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {
          completionLatch.countDown()
        }

        override fun onResponse(

                }
            }
        });
        refresh();
    }

    /**
     * Indexes suggest data from documents.
     *
     * @param success A callback for successful indexing.
     * @param error   A callback for indexing errors.
     */
    public void indexFromDocuments(final Consumer<Boolean> success, final Consumer<Throwable> error) {

ns/41584243/runtimeerror-task-attached-to-a-different-loop" class="external-link" target="_blank">MongoDB's MotorClient</a>), remember to instantiate objects that need an event loop only within async functions, e.g. an `@app.on_event("startup")` callback.

///...

s/41584243/runtimeerror-task-attached-to-a-different-loop" class="external-link" target="_blank">MotorClient de MongoDB</a>), recuerda crear instances de objetos que necesiten un loop de eventos solo dentro de funciones async, por ejemplo, en un callback `@app.on_event("startup")`.

///...