Wrap Callbacks as Coroutines in Android

result.kt

sealed class Result<out R> {
    data class Success<out T>(val data: T) : Result<T>()
    data class Error(val exception: Exception) : Result<Nothing>()
}

fun <T>Result<T>.getValue(): T {

    return if(this is Result.Success) {
        this.data
    } else {
        throw (this as Result.Error).exception
    }

}