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kotlinlang

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because the fun is declared inside your `Test` class

if you would move your code from `main` to eg. `init` of your Test class it would work

You made me realize that, I need to revisit my basics. Thanks a lot.

```package com.example

class Test {
   operator fun String.get(range: IntRange) = substring(range)
}

class Test2 {
   companion object {
       operator fun String.get(range: IntRange) = substring(range)
   }
}

fun main() {
   val x = "test"
   val y = with(Test()) { x[2..3] }
   val z = with(Test2) { x[2..3]}
}
```

is it possible to call `get` without `with` or similar? i do understand the result of the call but i can't figure out how i would explicitly write it... `Test().get()` doesn't work. `Test()."test"[]` doesn't even make any sense...