kotlin.collections.removeAll

inline fun <T> MutableCollection<out T>.removeAll(
    elements: Collection<T>
): Boolean

Removes all of this collection's elements that are also contained in the specified collection.

Allows to overcome type-safety restriction of removeAll that requires to pass a collection of type Collection<E>.

Return true if any of the specified elements was removed from the collection, false if the collection was not modified.

fun <T> MutableIterable<T>.r
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