docs: function(isLoaded) {
      var self = this;
      var isLoading = !isLoaded;
      var state = self.state;
      var prev = state.loadingStatus;
  
      isLoading = isLoading || false;
      state.loadingStatus = isLoading;
  
      self._notifyParentLoadingStatus(prev, !self.isLoaded());
    }