This works for me: ``` class SimpleLongProperty { ...

# javafx

[orangy]

This works for me:

class SimpleLongProperty {
    fun get() : Long = TODO()
    fun set(value: Long) = TODO()
}

class X {
    private var id: Long by SimpleLongProperty()
}

operator fun SimpleLongProperty.getValue(thisRef: Any?, property: KProperty<*>): Long {
    return this.get()
}

operator fun SimpleLongProperty.setValue(thisRef: Any?, property: KProperty<*>, value: Long) {
    this.set(value)
}