async getArtifact(context) {
    const devtoolsLog = context.dependencies.DevtoolsLog;
    const networkRecords = await NetworkRecords.request(devtoolsLog, context);
    return this.getCompressibleRecords(context, networkRecords);
  }
@param {LH.Gatherer.Context<'DevtoolsLog'>} context
@return {Promise<LH.Artifacts['ResponseCompression']>}