func newLBConnection(name string, conns []*WeightedConnection) *weightedConnections {
	return &weightedConnections{
		conns:  conns,
		helper: network2.NewConnectionHelper(name),
	}
}

func (lb *weightedConnections) AllWeightsEqual() bool {
	if len(lb.conns) == 0 {
		return true
	}

	weight := lb.conns[0].Weight
	for _, conn := range lb.conns {
		if conn.Weight != weight {
			return false
		}
	}
	return true
}

	if len(s.Connections) == 0 {
		panic("attempting to create load balancer with zero connections")
	}

	conn := newLBConnection("LeastRequestLB", s.Connections)

	if conn.AllWeightsEqual() {
		return newUnweightedLeastRequest(conn)
	}

	return newWeightedLeastRequest(conn, s.ActiveRequestBias)
}

type unweightedLeastRequest struct {
	*weightedConnections
	r *rand.Rand
}