An example with lists:
```val listString = mutable...
# announcementsk
karelpeeters
06/10/2018, 12:58 PMAn example with lists:
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val listString = mutableListOf<String>()
val listStar: MutableList<*> = listString
listStar.add(5) //doesn't compile
val listAny: MutableList<Any> = listString //doesn't compile
listAny.add(5)