    /// @notice The emission cap dictates an upper limit for reward speed emission speed configs
    /// @dev By default, is set to 100 1e18 token emissions / sec to avoid unbounded
    ///  computation/multiplication overflows
    uint256 public emissionCap;
    function _updateBorrowSpeed(
        MToken _mToken,
        address _emissionToken,
        uint256 _newBorrowSpeed
    ) external onlyEmissionConfigOwnerOrAdmin(_mToken, _emissionToken) {
        MarketEmissionConfig
            storage emissionConfig = fetchConfigByEmissionToken(
                _mToken,
                _emissionToken
            );

        uint256 currentBorrowSpeed = emissionConfig
            .config
            .borrowEmissionsPerSec;

        require(
            _newBorrowSpeed != currentBorrowSpeed,
            "Can't set new borrow emissions to be equal to current!"
        );
        require(
            _newBorrowSpeed < emissionCap,
            "Cannot set a borrow reward speed higher than the emission cap!"
        );
