abstract fun <K, V : Any> getExisting(plant: AssertionPlant<Map<out K, V>>, key: K): AssertionPlant<V> (source)abstract fun <K, V : Any> getExisting(plant: AssertionPlant<Map<out K, V>>, key: K, assertionCreator: AssertionPlant<V>.() -> Unit): Assertion (source)