GitLab

{
  "arguments": {
    "options": [
      {
        "code": 6
      }
    ],
    "remote": {
      "type": "mysql"
    },
    "server-tags": [
      "abc"
    ]
  },
  "command": "remote-option4-global-set"
}

Response:

{
  "arguments": {
    "options": [
      {
        "code": 6,
        "space": "dhcp4"
      }
    ]
  },
  "result": 0,
  "text": "DHCPv4 option successfully set."
}

Kea should not be configured with empty option. Possible that it's not yet implemented.