parcelable_on_diet__example.kt

@Parcelize
class Task(
    val id: Int,
    val description: Description,
    val priority: Priority = Normal,
    val status: Status = NotStarted,
    val attachment: Attachment? = null
) : Parcelable

@Parcelize
class Attachment(val path: String) : Parcelable

@Parcelize
@JvmInline
value class Description(val value: String) : Parcelable

enum class Priority {
    Low,
    Normal,
    High
}

sealed class Status : Parcelable {
    @Parcelize
    object NotStarted : Status()

    @Parcelize
    object InProgress : Status()

    @Parcelize
    class Completed(val completedAt: LocalDate) : Status()
}