anchor.diff:        });
   
         group('Into two elements list', () {
  -        final a = ee(0, gen([998, 999]));
  +        final a = ee(0, gen([998, 999], false));
   
           final tests = [
             {'b': [1, 998, 999]},
  
positive.code:   final result = [];
    for (var i in items) {
      if (i is List) {
        result.add(keys ? ee(i[0], gen(i[1])) : ei(gen(i[1])));
      } else {
        result.add(keys ? ee('text_$i', i.toString()) : ei(i.toString()));
      }
  
negative.code:       });
  
        group('Into one element list', () {
          final a = ee(0, gen([999], false));
  
          final tests = [
            {'b': [1]},
  