{
  "name": "grow_replace",
  "kind": "diff",
  "description": "replace two lines with three",
  "a_hex": "700a710a",
  "b_hex": "780a790a7a0a",
  "edits": [
    {
      "op": "delete",
      "a": 0,
      "len": 2
    },
    {
      "op": "insert",
      "b": 0,
      "len": 3
    }
  ],
  "hunks": [
    {
      "base": [
        0,
        2
      ],
      "new": [
        0,
        3
      ]
    }
  ]
}