[Guard conditions in when expressions](https://kotlinlang.org/docs/control-flow.html#guard-conditions-in-when-expressions) [Kotlin Guards Explained: Boost Code Clarity with `when` Statements in Kotlin 2.1](https://proandroiddev.com/kotlin-guards-explained-boost-code-clarity-with-when-statements-in-kotlin-2-1-776ec4c1b84a)
