{
  "title": "mt1",
  "description": "Plain negative CBOR integers storable as major type 1 (mt1), from RFC 8949 appendix A",
  "tests": [
    {
      "description": "mt1 minimum",
      "encoded": h'3bffffffffffffffff',
      "decoded": -18446744073709551616,
    },
    {
      "description": "mt1 maximum",
      "encoded": h'20',
      "decoded": -1,
    },
    {
      "description": "mt1 -10",
      "encoded": h'29',
      "decoded": -10,
    }
    {
      "description": "mt1 -100",
      "encoded": h'3863',
      "decoded": -100,
    }
    {
      "description": "mt1 -1000",
      "encoded": h'3903e7',
      "decoded": -1000,
    }
  ],
}