docs: function () {
              this.$pageCache = {};
  
              for (var key in this.$filterCache) {
                  if (this.$filterCache.hasOwnProperty(key)) {
                      this.$filterCache[key].invalidatePageCache();
                  }
              }
  
              for (key in this.$sortCache) {
                  if (this.$sortCache.hasOwnProperty(key)) {
                      this.$sortCache[key].invalidatePageCache();
                  }
              }
  
              this.set('$itemsCount', NaN, {silent: true});
              this.reset([]);
          }