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I found that the type of the SoundPrototype's variations property has its type wrongly defined. It is defined as array[SoundDefinition] while it apperently is PtreeItemOrArrayIterator.

Proposed version makes no sense. It is a helper for handling $union(X, $array(X)) but PreeItemOrArrayIterator is not a lua concrpt that can be exposed.

Request was understood anyway. Doc fixed to be "SoundDefinition or array[SoundDefinition]" for the next doc release, thank you for making the post.