static computeSimulatedMetric(data, context) {
    const metricData = ComputedMetric.getMetricComputationInput(data);
    return LanternTotalBlockingTime.request(metricData, context);
  }
@param {LH.Artifacts.MetricComputationData} data
@param {LH.Artifacts.ComputedContext} context
@return {Promise<LH.Artifacts.LanternMetric>}