: [{
          "name": "_addr",
          "type": "address"
        }],
        "name": "isFrozen",
        "outputs": [{
          "name": "",
          "type": "bool"
        }],
        "payable": false,
        "stateMutability": "view",
        "type": "function"
      },
      {
        "constant": false,
        "inputs": [{
          "name": "_newSupplyController",
          "type": "address"
        }],
        "name": "setSupplyController",
        "outputs": [],
        "payable": false,
        