{
  # group and class declaration config
  # vendor option space
  "Dhcp4": {
    "option-def": [
      {
        "space": "vendor-12345",
        "name": "test",
        "code": 1,
        "type": "string"
      }
    ],
    "option-data": [
      {
        "space": "dhcp4",
        "name": "vivso-suboptions",
        "code": 125,
        "data": "12345"
      },
      {
        "space": "vendor-12345",
        "name": "test",
        "code": 1,
        "data": "a test"
      }
    ]
  }
}