if value == nil {
		// for remove ops
		return nil, nil
	}
	var obj proto.Message
	switch applyTo {
	case networking.EnvoyFilter_CLUSTER:
		obj = &cluster.Cluster{}
	case networking.EnvoyFilter_LISTENER:
		obj = &listener.Listener{}
	case networking.EnvoyFilter_ROUTE_CONFIGURATION:
		obj = &route.RouteConfiguration{}
	case networking.EnvoyFilter_FILTER_CHAIN:
		obj = &listener.FilterChain{}