function removeCollapsedFromParents(element) {
        if (element && element.className.indexOf(options.collapsibleClass) !== -1 && element.className.indexOf(options.isCollapsedClass) !== -1) {
            element.className = element.className.split(SPACE_CHAR + options.isCollapsedClass).join('')
            return removeCollapsedFromParents(element.parentNode.parentNode)
        }
        return element
    }
Remove collpased class from parent elements.
@param {HTMLElement} element
@return {HTMLElement}