docs: @Override
      public final void initialize(final HttpRequest request) {
          request.setReadTimeout(2 * ONEMINITUES); // 2 minutes read timeout
          final HttpUnsuccessfulResponseHandler backoffHandler =
                  new HttpBackOffUnsuccessfulResponseHandler(
                          new ExponentialBackOff())
                          .setSleeper(sleeper);
          request.setInterceptor(wrappedCredential);
      request.setUnsuccessfulResponseHandler(
          (request1, response, supportsRetry) -> {
            if (wrappedCredential.handleResponse(request1, response, supportsRetry)) {
              // If credential decides it can handle it, the return code or message indicated
              // something specific to authentication, and no backoff is desired.
              return true;
            } else if (backoffHandler.handleResponse(request1, response, supportsRetry)) {
              // Otherwise, we defer to the judgement of our internal backoff handler.
              LOG.info("Retrying " + request1.getUrl().toString());
              return true;
            } else {
              return false;
            }
          });
          request.setIOExceptionHandler(
                  new HttpBackOffIOExceptionHandler(new ExponentialBackOff())
                          .setSleeper(sleeper));
      }