databind(
    dataStore.talks.registerFacet(['features_ss']),
    dataStore.talks,
    (data: FacetValue[]) => (
      <div>
        <CheckFacet 
          title="Features" 
          values={data}
          facet="features_ss"
          render={(label: string, value: number) => label + ': ' + value.toLocaleString()}
        />
      </div>
    )
  );