[
    {
        "inputs": [
            {
                "internalType": "uint32",
                "name": "fromChain",
                "type": "uint32"
            },
            {
                "internalType": "bytes",
                "name": "payload",
                "type": "bytes"
            }
        ],
        "name": "bridgeIn",
        "outputs": [
            {
                "internalType": "bytes4",
                "name": "",
                "type": "bytes4"
            }
        ],
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "uint32",
                "name": "toChain",
                "type": "uint32"
            },
            {
                "internalType": "address",
                "name": "sender",
                "type": "address"
            },
            {
                "internalType": "bytes",
                "name": "payload",
                "type": "bytes"
            }
        ],
        "name": "bridgeOut",
        "outputs": [
            {
                "internalType": "bytes4",
                "name": "selector",
                "type": "bytes4"
            },
            {
                "internalType": "bytes",
                "name": "data",
                "type": "bytes"
            }
        ],
        "stateMutability": "nonpayable",
        "type": "function"
    }
]