code: function _closePanes() {
              toggledPanes = {};
  
              if (lxSelect.choicesViewSize === 'large') {
                  if (angular.isDefined(lxSelect.choices) && lxSelect.choices !== null) {
                      lxSelect.panes = [lxSelect.choices];
                  } else {
                      lxSelect.panes = [];
                  }
              } else {
                  if (angular.isDefined(lxSelect.choices) && lxSelect.choices !== null) {
                      lxSelect.openedPanes = [lxSelect.choices];
                  } else {
                      lxSelect.openedPanes = [];
                  }
              }
          }
docs: Close all panes.