[
  "function balanceOf(address) view returns (uint256)",
  "function changeRewardsDuration(uint256)",
  "function changeStakingCollector(address)",
  "function changeStakingMaster(address)",
  "function earned(address) view returns (uint256)",
  "function getRewardFor(address)",
  "function getRewardForDuration() view returns (uint256)",
  "function lastTimeRewardApplicable() view returns (uint256)",
  "function notifyRewardAmount(uint256)",
  "function refundTokens(address)",
  "function rewardPerToken() view returns (uint256)",
  "function totalSupply() view returns (uint256)",
  "function updateReward(address)"
]