  function _getUpdatedState() internal returns (MarketState memory state) {
    state = _state;
    // Handle expired withdrawal batch
    if (state.hasPendingExpiredBatch()) {
      uint256 expiry = state.pendingWithdrawalExpiry;
      // Only accrue interest if time has passed since last update.
      
       ...... more code 

      _processExpiredWithdrawalBatch(state);
    }

    // Apply interest and fees accrued since last update (expiry or previous tx)
    if (block.timestamp != state.lastInterestAccruedTimestamp) {
      (uint256 baseInterestRay, uint256 delinquencyFeeRay, uint256 protocolFee) = state
        .updateScaleFactorAndFees(
          protocolFeeBips,
          delinquencyFeeBips,
          delinquencyGracePeriod,
          block.timestamp
        );
      emit ScaleFactorUpdated(state.scaleFactor, baseInterestRay, delinquencyFeeRay, protocolFee);
    }
  }
