/** * @param src address of the source token to exchange * @param dst token address that will received * @param amount amount to exchange * @param minReturn minimal amount of the dst token that will receive (if result < minReturn then transaction fails) * @param referral 1/20 from LP fees will be minted to referral wallet address (in liquidity token) (in case of address(0) no mints)  * @return result received amount */ function swap(address src, address dst, uint256 amount, uint256 minReturn, address referral) external payable returns(uint256 result);

/** * @dev provide liquidity to the pool and earn on trading fees * @param amounts [amount0, amount1] for liquidity provision (each amount sorted by token0 and token1)  * @param minAmounts minimal amounts that will be charged from sender address to liquidity pool (each amount sorted by token0 and token1)  * @return fairSupply received liquidity token amount */ function deposit(uint256[] calldata amounts, uint256[] calldata minAmounts) external payable returns(uint256 fairSupply);

/** * @dev withdraw liquidity from the pool * @param amount amount to burn in exchange for underlying tokens * @param minReturns minimal amounts that will be transferred to sender address in underlying tokens (each amount sorted by token0 and token1)  */ function withdraw(uint256 amount, uint256[] memory minReturns) external;

/** * @dev tokens will be sorted and stored according to token0 < token1 * @param tokenA  * @param tokenB  * @return pool created pool address */ function deploy(address tokenA, address tokenB) public returns(address pool);