function deposit() public payable;

// Also supports fallback
receive() external payable {
    deposit();
}

function withdraw(uint256 wad) public;

function totalSupply() public view returns (uint256);
function balanceOf(address owner) public view returns (uint256);
function allowance(address owner, address spender) public view returns (uint256);
function approve(address spender, uint256 value) public returns (bool);
function transfer(address to, uint256 value) public returns (bool);
function transferFrom(address from, address to, uint256 value) public returns (bool);

event Deposit(address indexed dst, uint256 wad);
event Withdrawal(address indexed src, uint256 wad);
event Approval(address indexed src, address indexed guy, uint256 wad);
event Transfer(address indexed src, address indexed dst, uint256 wad);

import "@luxfi/standard/src/uni/WLUX.sol";

WLUX wlux = WLUX(WLUX_ADDRESS);

// Method 1: deposit()
wlux.deposit{value: 1 ether}();

// Method 2: send directly
payable(address(wlux)).transfer(1 ether);

// Check balance
uint256 balance = wlux.balanceOf(msg.sender);
// balance == 1e18 WLUX

// Unwrap WLUX to receive native LUX
wlux.withdraw(1 ether);

// LUX is sent to msg.sender

// Wrap LUX for AMM swap
wlux.deposit{value: 1 ether}();
wlux.approve(router, 1 ether);

router.swapExactTokensForTokens(
    1 ether,
    minOut,
    [address(wlux), LUXD],
    msg.sender
);

// Add liquidity to V2 pool
wlux.deposit{value: 10 ether}();
wlux.approve(router, 10 ether);
LUXD.approve(router, 10000e18);

router.addLiquidity(
    address(wlux),
    LUXD,
    10 ether,
    10000e18,
    0,
    0,
    msg.sender,
    deadline
);