arrow-optics / arrow.optics.extensions.mapk.filterIndex / filter

filter

@JvmName("filter") fun <K, V> ~~filter~~(p: (K) -> Boolean): PTraversal<MapK<K, V>, MapK<K, V>, V, V> Deprecated: arrow.optics.extensions package is being deprecated. Use the exposed function in the instance for Map from the companion object of the typeclass instead.