--- /dev/null
+let ServiceDependency =
+ < Addon : { addon_id : Text } | Application : { app_id : Text } >
+
+let addon = λ(addon_id : Text) → ServiceDependency.Addon { addon_id = addon_id }
+
+let application =
+ λ(app_id : Text) → ServiceDependency.Application { app_id = app_id }
+
+in { Type = ServiceDependency, addon = addon, application = application }