code: function (title) {
              // important to pass single param, because casper acts
              // weirdly with single key objects https://github.com/n1k0/casperjs/issues/353
              return casper.evaluate(function (anchorTitle) {
                  return CMS.$('.jstree-anchor').map(function () {
                      var anchor = CMS.$(this);
  
                      if (anchor.text().trim() === anchorTitle) {
                          return anchor.parent().data('nodeId');
                      }
                  }).toArray();
              }, title);
          }
docs: Returns page nodeIds of all the pages with same title.
  Pages has to be visible in the page tree. See `expandPageTree`.
  
  @function _getPageNodeIds
  @private
  @param {String} title page title
  @returns {String[]|Boolean} page node ids as an array of strings or false if couldn't be found