// TODO: change _round to getRound() wherever it is called in other internal functions
function getRound() public view returns (uint256) {
  // if round is overridden, return set value
  if (_round != 0) return _round;
  // otherwise, if value is 0, use Tokemak's currentCycleIndex()
  // Tokemak manager at 0xa86e412109f77c45a3bc1c5870b880492fb86a14
  return manager.currentCycleIndex();
}
