  function populateFromPreviousThrottle(address previousThrottle, uint256 epoch)
    external
    onlyRoleMalt(ADMIN_ROLE, "Only admin role")
  {
    RewardThrottle previous = RewardThrottle(previousThrottle);
    uint256 _activeEpoch = activeEpoch; // gas

    for (uint256 i = _activeEpoch; i < epoch; ++i) {
      (
        uint256 profit,
        uint256 rewarded,
        uint256 bondedValue,
        uint256 desiredAPR,
        uint256 epochsPerYear,
        uint256 cumulativeCashflowApr,
        uint256 cumulativeApr
      ) = previous.epochData(i);

      state[i].bondedValue = bondedValue;
      state[i].profit = profit;
      state[i].rewarded = rewarded;
      state[i].epochsPerYear = epochsPerYear;
      state[i].desiredAPR = desiredAPR;
      state[i].cumulativeCashflowApr = cumulativeCashflowApr;
      state[i].cumulativeApr = cumulativeApr;
    }

    activeEpoch = epoch;
  }
