le.toLowerCase().replace(' ', '_');
      const energyHist = undefined;
      if (histogramName.includes('response')) {
        yield {
          bounds: tr.b.math.Range.fromExplicitRange(exp.start, exp.end),
          name: histogramName,
          description: 'RAIL stage ' + histogramName,
          perSecond: false
        };
      } else if (histogramName.includes('animation') ||
          histogramName.includes('idle')) {
        yield {
          bounds: tr.b.math.Range.fromExplicitRange(exp.start, e