associateByTo
inline fun <Element, Key, Destination : KoneMutableMap<in Key, in Element>> KoneIterable<Element>.associateByTo(destination: Destination, keySelector: (Element) -> Key): Destination(source)
inline fun <Element, Key, Value, Destination : KoneMutableMap<in Key, in Value>> KoneIterable<Element>.associateByTo(destination: Destination, keySelector: (Element) -> Key, valueTransform: (Element) -> Value): Destination(source)