public void AugmentPeekSession(IPeekSession session, IList <IPeekableItem> peekableItems)
        {
            var triggerPoint = session.GetTriggerPoint(_textBuffer.CurrentSnapshot);

            if (!triggerPoint.HasValue)
            {
                return;
            }

            string className = HtmlHelpers.GetSinglePropertyValue(_textBuffer, triggerPoint.Value.Position, "class");

            if (string.IsNullOrEmpty(className))
            {
                return;
            }


            peekableItems.Add(new ClassDefinitionPeekItem(className, _peekResultFactory, _textBuffer));
        }