code: function( siteId ) {
  		return {
  			totalViewers: _totalViewers[ siteId ] || 0,
  			fetchingViewers: _fetchingViewers[ siteId ],
  			currentViewersPage: _viewersCurrentPage[ siteId ],
  			numViewersFetched: _numViewersFetched[ siteId ],
  		};
  	}
docs: This data may help with infinite scrolling