// new resources it needs, rather than the entire set of known resources.
	// Note: we do not need to account for unsubscribed resources as these are handled by parent removal;
	// See https://www.envoyproxy.io/docs/envoy/latest/api-docs/xds_protocol#deleting-resources.
	// This means if there are only removals, we will not respond.
	var logFiltered string