/// <summary>
/// Removes a range of elements from the rope.
/// Runs in O(lg N).
/// </summary>
/// <exception cref="ArgumentOutOfRangeException">offset or length is outside the valid range.</exception>
public void RemoveRange(int index, int count)
{
VerifyRange(index, count);
if (count > 0)
{
root = root.RemoveRange(index, count);
OnChanged();
}
}
