functional/rpcpb/member.go
func (m *Member) CreateEtcdClient(opts ...grpc.DialOption) (*clientv3.Client, error) {
	cfg, err := m.CreateEtcdClientConfig(opts...)
	if err != nil {
		return nil, err
	}
	return clientv3.New(*cfg)
}
func (m *Member) CreateEtcdClient(opts ...grpc.DialOption) (*clientv3.Client, error) {
	cfg, err := m.CreateEtcdClientConfig(opts...)
	if err != nil {
		return nil, err
	}
	return clientv3.New(*cfg)
}
// CreateEtcdClient creates a client from member.