When working with `sealed interface/sealed class` and using `copy()`, how does one create common fun...

# android

[0xf1f1]

When working with sealed interface/sealed class and using copy(), how does one create common functions that are shared by all the inheriting data classes without repeating the code ? See changeFooVal() below. The function performs the exact same operation for all data classes which makes it repetitive + more lines/maintenance overhead.

sealed interface Foo {
val fooVal: String
data class FooX(val fooVal: String) {
fun changeFooVal(value: String): FooX = copy(fooVal = value)
}
data class FooY(val fooVal: String) {
fun changeFooVal(value: String): FooY = copy(fooVal = value)
}
}

[Chrimaeon]

Better move this question to #C0B8MA7FA