"filter_chains": [
        {
         "filters": [
          {
           "name": "istio.stats",
           "typed_config": {
            "@type": "type.googleapis.com/stats.PluginConfig"
           }
          },
          {
           "name": "envoy.filters.network.tcp_proxy",
           "typed_config": {
            "@type": "type.googleapis.com/envoy.extensions.filters.network.tcp_proxy.v3.TcpProxy",