public boolean enclosesAll(RangeSet<C> other) {
    return enclosesAll(other.asRanges());
  }

  @Override
  public boolean enclosesAll(Iterable<Range<C>> ranges) {
    for (Range<C> range : ranges) {
      if (!encloses(range)) {
        return false;
      }
    }
    return true;
  }

  @Override
  public void addAll(RangeSet<C> other) {
    addAll(other.asRanges());
  }

  @Override

    removeAll(other.asRanges());
  }

  @Override
  public boolean intersects(Range<C> otherRange) {
    return !subRangeSet(otherRange).isEmpty();
  }

  @Override
  public abstract boolean encloses(Range<C> otherRange);

  @Override
  public boolean equals(@CheckForNull Object obj) {
    if (obj == this) {
      return true;
    } else if (obj instanceof RangeSet) {
      RangeSet<?> other = (RangeSet<?>) obj;