update packages

rpcx/internal/balancer/roundrobin.go

@@ -0,0 +1,25 @@
+package balancer
+
+import (
+	"google.golang.org/grpc/balancer"
+	"google.golang.org/grpc/balancer/base"
+)
+
+const (
+	Name = "roundrobin"
+)
+
+func init() {
+	balancer.Register(newBuilder())
+}
+
+type roundRobinPickerBuilder struct {
+}
+
+func newBuilder() balancer.Builder {
+	return base.NewBalancerBuilder(Name, new(roundRobinPickerBuilder))
+}
+
+func (b *roundRobinPickerBuilder) Build(info base.PickerBuildInfo) balancer.Picker {
+	panic("implement me")
+}