[
  "event AddrChanged(bytes32 indexed,address)",
  "event AddressChanged(bytes32 indexed,uint256,bytes)",
  "function addr(bytes32) view returns (address)",
  "function addr(bytes32,uint256) view returns (bytes)",
  "function setAddr(bytes32,uint256,bytes)",
  "function setAddr(bytes32,address)",
  "function supportsInterface(bytes4) pure returns (bool)"
]