[
  "event DelegateChanged(address indexed,address indexed,address indexed)",
  "event DelegateVotesChanged(address indexed,uint256,uint256)",
  "function delegate(address)",
  "function delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32)",
  "function delegates(address) view returns (address)",
  "function getPastTotalSupply(uint256) view returns (uint256)",
  "function getPastVotes(address,uint256) view returns (uint256)",
  "function getVotes(address) view returns (uint256)"
]