enableFailover bool,
) {
	if localityLB == nil || loadAssignment == nil {
		return
	}

	// one of Distribute or Failover settings can be applied.
	if localityLB.GetDistribute() != nil {
		applyLocalityWeights(locality, loadAssignment, localityLB.GetDistribute())
		// Failover needs outlier detection, otherwise Envoy will never drop down to a lower priority.
		// Do not apply default failover when locality LB is disabled.