function assertGovernanceApproved(
    address sender,
    address target,
    bool emergency
  ) public {
...
pendingFlashDecision[target][sender].unlockTime += block.timestamp;
...
}
pendingFlashDecision[target][sender].unlockTime += block.timestamp; // 10000+100=10100
pendingFlashDecision[target][sender].unlockTime += block.timestamp; // 10100+10500=20600
constant public CONSTANT_UNLOCK_TIME = 1 days; // example
pendingFlashDecision[target][sender].unlockTime = CONSTANT_UNLOCK_TIME +  block.timestamp;
