DisposableEffectExample.kt

@Composable
fun MyComponent() {
    var data by remember { mutableStateOf("") }
    val disposableEffect = remember { mutableStateOf<Disposable?>(null) }

    DisposableEffect(Unit) {
        val disposable = someAsyncOperation().subscribe {
            data = it
        }
        onDispose {
            disposable.dispose()
        }
        disposableEffect.value = disposable
    }

    // rest of the composable function
}