docs: public static <T> Set<T> minus(Set<T> self, Object removeMe) {
          Comparator comparator = (self instanceof SortedSet) ? ((SortedSet) self).comparator() : null;
          final Set<T> ansSet = createSimilarSet(self);
          for (T t : self) {
              boolean areEqual = (comparator != null)? (comparator.compare(t, removeMe) == 0) : coercedEquals(t, removeMe);
              if (!areEqual) ansSet.add(t);
          }
          return ansSet;
      }