class CronetClientStream extends AbstractClientStream {

  @Override
  protected Sink abstractClientStreamSink() {
    return sink;
  }

    CronetClientStream(
      final String url,
      @Nullable String userAgent,
      Executor executor,
      final Metadata headers,
      CronetClientTransport transport,
      Runnable startCallback,
      Object lock,
      int maxMessageSize,
      boolean alwaysUsePut,
      MethodDescriptor<?, ?> method,
      StatsTraceContext statsTraceCtx,
      CallOptions callOptions,
      TransportTracer transportTracer);

}