grafana/public/app/core/components/scroll/scroll.ts

import GeminiScrollbar from 'gemini-scrollbar';
import coreModule from 'app/core/core_module';

export function geminiScrollbar() {
  return {
    restrict: 'A',
    link: function(scope, elem, attrs) {
      var myScrollbar = new GeminiScrollbar({
        autoshow: false,
        element: elem[0]
      }).create();

      scope.$on('$destroy', () => {
        myScrollbar.destroy();
      });
    }
  };
}

coreModule.directive('geminiScrollbar', geminiScrollbar);