contract LPToken is ERC20BurnableUpgradeable, OwnableUpgradeable {
    using SafeMathUpgradeable for uint256;

    /**
     * @notice Initializes this LPToken contract with the given name and symbol
     * @dev The caller of this function will become the owner. A Swap contract should call this
     * in its initializer function.
     * @param name name of this token
     * @param symbol symbol of this token
     */
    function initialize(string memory name, string memory symbol)
        external
        initializer
        returns (bool)
    {
        __Context_init_unchained();
        __ERC20_init_unchained(name, symbol);
        __Ownable_init_unchained();
        return true;
    }

    /**
     * @notice Mints the given amount of LPToken to the recipient.
     * @dev only owner can call this mint function
     * @param recipient address of account to receive the tokens
     * @param amount amount of tokens to mint
     */
    function mint(address recipient, uint256 amount) external onlyOwner {
        require(amount != 0, "LPToken: cannot mint 0");
        _mint(recipient, amount);
    }

    /**
     * @dev Overrides ERC20._beforeTokenTransfer() which get called on every transfers including
     * minting and burning. * This assumes the owner is set to a Swap contract's address.
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual override(ERC20Upgradeable) {
        super._beforeTokenTransfer(from, to, amount);
        require(to != address(this), "LPToken: cannot send to itself");
    }
}
/**
 * @title Liquidity Provider Token
 * @notice This token is an ERC20 detailed token with added capability to be minted by the owner.
 * It is used to represent user's shares when providing liquidity to swap contracts.
 * @dev Only Swap contracts should initialize and own LPToken contracts.
 */
function mint(address recipient, uint256 amount) external onlyOwner {
        require(amount != 0, "LPToken: cannot mint 0");
        _mint(recipient, amount);
    }
/**
 * @notice Mints the given amount of LPToken to the recipient.
 * @dev only owner can call this mint function
 * @param recipient address of account to receive the tokens
 * @param amount amount of tokens to mint
 */