static async compute_(data, context) {
    return TimingSummary.summarize(
      data.trace,
      data.devtoolsLog,
      data.gatherContext,
      data.settings,
      data.URL,
      data.SourceMaps,
      context
    );
  }
@param {{trace: LH.Trace, devtoolsLog: LH.DevtoolsLog, gatherContext: LH.Artifacts['GatherContext']; settings: LH.Util.ImmutableObject<LH.Config.Settings>, URL: LH.Artifacts['URL'], SourceMaps: LH.Artifacts['SourceMaps']}} data
@param {LH.Artifacts.ComputedContext} context
@return {Promise<{metrics: LH.Artifacts.TimingSummary, debugInfo: Record<string,boolean>}>}