{
  # binary-to-ascii data expression
  # empty configs are not accepted by Kea
  "Dhcp6": {
    "valid-lifetime": 1800,
    "client-classes": [
      # reduce literals
      {
        "name": "literal",
        /// from: match if (option dhcp6.client-data) = (binary-to-ascii(16, 8, '-', 'foo'))
        "test": "option[45].hex == '7-66-6f-6f'"
      }
    ]
  }
}