0:   {
1:     "arr": [
2: -     1,
3:       2,
4: -     3
3: +     3,
3: +     4
5:     ],
6:     "arr2": [
7:       {
8:         "a": "av"
9:       },
10:       {
11: -       "b": "bv"
11: +       "b": "bvv"
12:       },
13:       {
14:         "c": "cv"
----