final boolean contains(Object); public final scala.collection.Iterator iterator(); public final void foreach(scala.Function1); public void Set$Set3(Object, Object, Object); } scala/collection/immutable/Set$Set2.class package scala.collection.immutable; public final synchronized class Set$Set2 extends scala.collection.AbstractSet implements scala.Serializable, scala.collection.GenSet { private final Object elem1; private final Object elem2; public final scala.collection.generic.GenericCompanion companion();...