@Override
    public void onAsyncResponse(ConsumerConfig config, SofaRequest request, SofaResponse response, Throwable throwable)
        throws SofaRpcException {
        if (request.isAsync() && response != null) {
            response.setAppResponse(response.getAppResponse() + "append by async filter");
        }
    }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
test/test-integration/src/test/java/com/alipay/sofa/rpc/test/invoke/TestAsyncFilter.java