clientv3/balancer/resolver/endpoint/endpoint.go
func epsToAddrs(eps ...string) (addrs []resolver.Address) {
	addrs = make([]resolver.Address, 0, len(eps))
	for _, ep := range eps {
		addrs = append(addrs, resolver.Address{Addr: ep})
	}
	return addrs
}
func epsToAddrs(eps ...string) (addrs []resolver.Address) {
	addrs = make([]resolver.Address, 0, len(eps))
	for _, ep := range eps {
		addrs = append(addrs, resolver.Address{Addr: ep})
	}
	return addrs
}
// TODO: use balancer.epsToAddrs