public interface Builder<Elem,To> extends scala.collection.mutable.Builder<Elem,To>
Builder<Elem,To>
addOne(Elem elem)
$init$, $plus$eq, clear, mapResult, result, sizeHint, sizeHint, sizeHint, sizeHintBounded
$init$, $plus$eq, $plus$plus$eq
Builder<Elem,To> addOne(Elem elem)