@Override public long arrivalTimeNanos() { return delegate.arrivalTimeNanos(); }
@Override public ServerInfo serverInfo() { return delegate.serverInfo(); }
@Override public boolean isExpired() { return delegate.isExpired(); }
@Override public void drop() { delegate.drop(); }
@Override public void reply(Response<ByteString> response) { delegate.reply(response); }
@Override public Request request() { return delegate.request(); }