    function _handleRepay(uint _offset, bytes[] memory _data, uint _initPosId, RepayParams[] memory _params)
        internal
        returns (uint, bytes[] memory)
    {
        for (uint i; i < _params.length; i = i.uinc()) {
            address uToken = ILendingPool(_params[i].pool).underlyingToken();
>>>         uint repayAmt = ILendingPool(_params[i].pool).debtShareToAmtCurrent(_params[i].shares);
            _ensureApprove(uToken, repayAmt);
>>>         IERC20(uToken).safeTransferFrom(msg.sender, address(this), repayAmt);
            _data[_offset] =
                abi.encodeWithSelector(IInitCore.repay.selector, _params[i].pool, _params[i].shares, _initPosId);
            _offset = _offset.uinc();
        }
        return (_offset, _data);
    }
    function _repay(IConfig _config, uint16 _mode, uint _posId, address _pool, uint _shares)
        internal
        returns (address tokenToRepay, uint amt)
    {
        // check status
        _require(_config.getPoolConfig(_pool).canRepay && _config.getModeStatus(_mode).canRepay, Errors.REPAY_PAUSED);
        // get position debt share
>>>     uint positionDebtShares = IPosManager(POS_MANAGER).getPosDebtShares(_posId, _pool);
>>>     uint sharesToRepay = _shares < positionDebtShares ? _shares : positionDebtShares;
        // get amtToRepay (accrue interest)
>>>     uint amtToRepay = ILendingPool(_pool).debtShareToAmtCurrent(sharesToRepay);
        // take token from msg.sender to pool
        tokenToRepay = ILendingPool(_pool).underlyingToken();
>>>     IERC20(tokenToRepay).safeTransferFrom(msg.sender, _pool, amtToRepay);
        // update debt on the position
        IPosManager(POS_MANAGER).updatePosDebtShares(_posId, _pool, -sharesToRepay.toInt256());
        // call repay on the pool
        amt = ILendingPool(_pool).repay(sharesToRepay);
        // update debt on mode
        IRiskManager(riskManager).updateModeDebtShares(_mode, _pool, -sharesToRepay.toInt256());
        emit Repay(_pool, _posId, msg.sender, _shares, amt);
    }
