code: function (config) {
      var guide = config.categoryAxis.guides[0]
      var filter = this.filteredCollection.getFilters(this.filteredCollection.getTriggerField())
      if (filter) {
        if (config.categoryAxis.parseDates) {
          guide.date = filter.expression.value[0].value
          guide.toDate = filter.expression.value[1].value
        } else {
          guide.category = guide.toCategory = filter.expression.value
        }
      } else {
        if (guide.date) delete guide.date
        if (guide.toDate) delete guide.toDate
        if (guide.category) delete guide.category
      }
    }
docs: Show guide on selected item or remove it if nothing's selected