{
    "testcases": {
      "b856d760-023d-4b00-bad2-15d2b6da22fe": {
    "action": "block2poly",
    "arguments": {
    "semantic": "xex",
    "block": "ARIAAAAAAAAAAAAAAAAAgA=="
    }
    },
    "254eaee7-05fd-4e0d-8292-9b658a852245": {
        "action": "poly2block",
        "arguments": {
          "semantic": "xex",
          "coefficients": [
            12,
            127,
            9,
            0
          ]
        }
      }
    }
}