investSingleETH

function investSingleETH(
    uint _period,
    uint _deadline
)external payable ensure(_deadline)

const overrides = {
    gasLimit: 9999999,
    value : ethers.utils.parseEther("1.0")
}

await stakingRouterContract.investSingleETH(
    10,
    MaxUint256,
    overrides
)