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package scala.collection.generic
/** A template for companion objects of immutable.Map and subclasses thereof.
*/
abstract class ImmutableMapFactory[CC[A, +B] <: immutable.Map[A, B] with MapTemplate[A, B, CC[A, B]]] {
def newBuilder[A, B]: Builder[(A, B), CC[A, B]] = new ImmutableMapBuilder[A, B, CC[A, B]](empty[A, B])
def empty[A, B]: CC[A, B]
def apply[A, B](elems: (A, B)*): CC[A, B] = {
val b = newBuilder[A, B]
b ++= Iterable.fromOld(elems)
b.result
}
}
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