uuid generator supports generating more than 1 uuid in one time

pkg/services/base.go

@@ -45,3 +45,8 @@ type ServiceUsingUuid struct {
 func (s *ServiceUsingUuid) GenerateUuid(uuidType uuid.UuidType) int64 {
 	return s.container.GenerateUuid(uuidType)
 }
+
+// GenerateUuids generates new uuids according to given uuid type and count
+func (s *ServiceUsingUuid) GenerateUuids(uuidType uuid.UuidType, count uint8) []int64 {
+	return s.container.GenerateUuids(uuidType, count)
+}