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@@ -15,7 +15,8 @@ e.g.
but the aim here is to handle more or less arbitrary types.
Warning: it is currently possible to run into ambiguity by defining a
-recursive structure with optional named elements.
+recursive structure with optional named elements. Unit type can be
+used to avoid that, see the `RecursiveRecordMaybe` test.
Not production-ready yet, merely a prototype.