cloudnet: initial version

pkg/cloudnet/models/util_errors.go

@@ -0,0 +1,16 @@
+package models
+
+type (
+	errNotFound    error
+	errMoreThanOne error
+)
+
+func IsNotFound(err error) bool {
+	_, ok := err.(errNotFound)
+	return ok
+}
+
+func IsMoreThanOne(err error) bool {
+	_, ok := err.(errMoreThanOne)
+	return ok
+}