for nsKey, v := range v {
			out[svcKey][nsKey] = v.DeepCopy()
		}
	}
	return out
}

// ShardsForService returns the shards and true if they are found, or returns nil, false.
func (e *EndpointIndex) ShardsForService(serviceName, namespace string) (*EndpointShards, bool) {
	e.mu.RLock()
	defer e.mu.RUnlock()
	byNs, ok := e.shardsBySvc[serviceName]
	if !ok {