src/PirexGmx.sol:
  298          @param  fee  uint256  Fee amount
  299:      */
  300:     function setFee(Fees f, uint256 fee) external onlyOwner {
  301:         if (fee > FEE_MAX) revert InvalidFee();
  302: 
  303:         fees[f] = fee;
  304: 
  305:         emit SetFee(f, fee);
  306:     }
