ah damn it, it’s the implementation of

count

, in my code I have

override val count = storage.size

and in the interface it’s with a custom getter

sure but I am trying an exercise that implements this from scratch, that’s why

Also, just to answer your original question, I think you figured it out, but you need a getter for your

count

or to turn that into a function. You want the size to be re-evaluated every time you query the count. https://kotlinlang.org/docs/properties.html#getters-and-setters