*/
  open fun secureConnectStart(call: Call) {
  }

  /**
   * Invoked immediately after a TLS connection was attempted.
   *
   * This method is invoked after [secureConnectStart].
   */
  open fun secureConnectEnd(
    call: Call,
    handshake: Handshake?,
  ) {
  }

  /**
   * Invoked immediately after a socket connection was attempted.
   *

    code: Int,
    reason: String?,
  ): Boolean

  /**
   * Immediately and violently release resources held by this web socket, discarding any enqueued
   * messages. This does nothing if the web socket has already been closed or canceled.
   */
  fun cancel()

  fun interface Factory {
    /**
     * Creates a new web socket and immediately returns it. Creating a web socket initiates an

  fun request(): Request

  /**
   * Immediately and violently release resources held by this event source. This does nothing if
   * the event source has already been closed or canceled.
   */
  fun cancel()

  fun interface Factory {
    /**
     * Creates a new event source and immediately returns it. Creating an event source initiates an

   *     arbitrary past or present time
   */
  abstract long queryEarliestAvailable(long nowMicros);

  /**
   * Reserves the requested number of permits and returns the time that those permits can be used
   * (with one caveat).
   *
   * @return the time that the permits may be used, or, if the permits may be used immediately, an
   *     arbitrary past or present time

   *     arbitrary past or present time
   */
  abstract long queryEarliestAvailable(long nowMicros);

  /**
   * Reserves the requested number of permits and returns the time that those permits can be used
   * (with one caveat).
   *
   * @return the time that the permits may be used, or, if the permits may be used immediately, an
   *     arbitrary past or present time

 * it is invoked using this executor once the future's computation is {@linkplain Future#isDone()
 * complete}. If the computation has already completed when the listener is added, the listener will
 * execute immediately.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/ListenableFutureExplained">{@code
 * ListenableFuture}</a>.
 *
 * <p>This class is GWT-compatible.
 *

   * it only remembers the last request. What if the RateLimiter was unused for a long period of
   * time, then a request arrived and was immediately granted? This RateLimiter would immediately
   * forget about that past underutilization. This may result in either underutilization or
   * overflow, depending on the real world consequences of not using the expected rate.
   *

 * it is invoked using this executor once the future's computation is {@linkplain Future#isDone()
 * complete}. If the computation has already completed when the listener is added, the listener will
 * execute immediately.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/ListenableFutureExplained">{@code
 * ListenableFuture}</a>.
 *
 * <p>This class is GWT-compatible.
 *

 * it is invoked using this executor once the future's computation is {@linkplain Future#isDone()
 * complete}. If the computation has already completed when the listener is added, the listener will
 * execute immediately.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/ListenableFutureExplained">{@code
 * ListenableFuture}</a>.
 *
 * <p>This class is GWT-compatible.
 *

 */
interface Call : Cloneable {
  /** Returns the original request that initiated this call. */
  fun request(): Request

  /**
   * Invokes the request immediately, and blocks until the response can be processed or is in error.
   *
   * To avoid leaking resources callers should close the [Response] which in turn will close the
   * underlying [ResponseBody].
   *
   * ```java