inline fun <T, K, M : MutableMap<in K, in T>> MongoIterable<T>.associateByTo(destination: M, crossinline keySelector: (T) -> K): Minline fun <T, K, V, M : MutableMap<in K, in V>> MongoIterable<T>.associateByTo(destination: M, crossinline keySelector: (T) -> K, crossinline valueTransform: (T) -> V): M