anchor.diff:    String coverage,
     bq.TabledataResourceApi tableData,
     bool forceSingleCore = false,
  +  Duration perTestTimeout,
   }) async {
     int cpus;
     final String cpuVariable = Platform.environment['CPU']; // CPU is set in cirrus.yml
  
positive.code:       '--no-color',
      if (coverage != null)
        '--coverage=$coverage',
      if (testPaths != null)
        for (final String testPath in testPaths)
          testPath,
  
negative.code:         testPaths: <String>[path.join(kTest, '$subshard$kDotShard', suffix)],
          tableData: bigqueryApi?.tabledata,
          enableFlutterToolAsserts: true,
          // Detect unit test time regressions (poor time delay handling, etc).
          perTestTimeout: (subshard == 'general') ? const Duration(seconds: 2) : null,
        );
      },
    );
  