client.newCall(Request.Builder().url(server.url("/a")).build()).enqueue(callback)
    callback.await(server.url("/a")).assertBody("abc")
    client.newCall(Request.Builder().url(server.url("/b")).build()).enqueue(callback)
    callback.await(server.url("/b")).assertBody("def")
    client.newCall(Request.Builder().url(server.url("/c")).build()).enqueue(callback)
    callback.await(server.url("/c")).assertBody("ghi")

                [FastAPI docs for OpenAPI Callbacks](https://fastapi.tiangolo.com/advanced/openapi-callbacks/).
                """
            ),
        ] = None,
        webhooks: Annotated[
            Optional[routing.APIRouter],
            Doc(
                """
                Add OpenAPI webhooks. This is similar to `callbacks` but it doesn't
                depend on specific *path operations*.

                    current_dependencies.extend(route.dependencies)
                current_callbacks = []
                if callbacks:
                    current_callbacks.extend(callbacks)
                if route.callbacks:
                    current_callbacks.extend(route.callbacks)
                current_generate_unique_id = get_value_or_default(
                    route.generate_unique_id_function,

    server.protocolNegotiationEnabled = true
    server.protocols = client.protocols
  }

  /**
   * Used during tests that involve TLS connection fallback attempts. OkHttp includes the
   * TLS_FALLBACK_SCSV cipher on fallback connections. See [FallbackTestClientSocketFactory]
   * for details.
   */

HSPLokhttp3/internal/connection/Exchange;->writeRequestHeaders(Lokhttp3/Request;)V
HSPLokhttp3/internal/connection/RealCall$AsyncCall;-><init>(Lokhttp3/internal/connection/RealCall;Lokhttp3/Callback;)V
HSPLokhttp3/internal/connection/RealCall$AsyncCall;->getHost()Ljava/lang/String;
HSPLokhttp3/internal/connection/RealCall$AsyncCall;->run()V

            }
            result.put(key, value);
          }
        } catch (UnsupportedLoadingOperationException e) {
          // loadAll not implemented, fallback to load
          for (K key : keysToLoad) {
            misses--; // get will count this miss
            result.put(key, get(key, defaultLoader));
          }
        }
      }