[
  {
    "Guid": 1000,
    "Counters": [
      1,
      2,
      3
    ],
    "Callsites": [
      [],
      [
        {
          "Guid": 2000,
          "Counters": [
            4,
            5
          ]
        },
        {
          "Guid": 18446744073709551613,
          "Counters": [
            6,
            7,
            8
          ]
        }
      ],
      [
        {
          "Guid": 3000,
          "Counters": [
            40,
            50
          ]
        }
      ]
    ]
  },
  {
    "Guid": 18446744073709551612,
    "Counters": [
      5,
      9,
      10
    ]
  }
]