docs: public static Set<Stubbing> findStubbings(Iterable<?> mocks) {
          Set<Stubbing> stubbings = new TreeSet<Stubbing>(new StubbingComparator());
          for (Object mock : mocks) {
              Collection<? extends Stubbing> fromSingleMock = new DefaultMockingDetails(mock).getStubbings();
              stubbings.addAll(fromSingleMock);
          }
  
          return stubbings;
      }