docs: function (key) {
              var oldValue = this.getItem(key);
  
              if (oldValue !== null) {
                  ariaStorageEventBus.stop = true;
                  this._remove(this.namespace + key);
                  ariaStorageEventBus.stop = false;
  
                  ariaStorageEventBus.notifyChange(this.type, key, null, oldValue, this.namespace);
              }
          }