  function authRedeem(uint8 p, address u, uint256 m, address f, address t, uint256 a) public authorized(markets[p][u][m].zcToken) returns (uint256 underlyingAmount) {
     .....

      ISwivel(swivel).authRedeem(p, u, market.cTokenAddr, t, a);

     .....
    } else {

     .....
      ISwivel(swivel).authRedeem(p, u, market.cTokenAddr, t, amount);
     ....
    }
  function authRedeemZcToken(uint8 p, address u, address c, address t, uint256 a) external authorized(marketPlace) returns(bool) {
    // redeem underlying from compounding
    if (!withdraw(p, u, c, a)) { revert Exception(7, 0, 0, address(0), address(0)); }
    // transfer underlying back to msg.sender
    Safe.transfer(IErc20(u), t, a);

    return (true);
  }
