Example metric configuration using redisproxy

My goal is to collect redis statistics (as documented in the envoyproxy @ https://www.envoyproxy.io/docs/envoy/v1.11.2/configuration/network_filters/redis_proxy_filter#config-network-filters-redis-proxy).

Deployment is a redis cluster and I want to use istio mixer to collect metrics about redis usage & latency. I assume this is possible. Please let me know otherwise.

Does any one has example configuration for metrics like tcp -> https://raw.githubusercontent.com/istio/istio/release-1.3/samples/bookinfo/telemetry/tcp-metrics.yaml?