fun stakingDepositMessage(value: Int, pool: Address): SendParameters {
    return SendParameters{
        to: pool,
        value: value,
        body: beginCell().storeSlice("Deposit".asSlice()).endCell()
    };
}

fun stakingWithdrawMessage(value: Int, pool: Address): SendParameters {
    return SendParameters{
        to: pool,
        value: ton("0.05"),
        body: beginCell().storeUint(3665837821, 32).storeCoins(value).endCell()
    };
}

struct WithdrawalRequests {
    addresses: map[Int]Address;
    amounts: map[Int]Int;
    n_requests: Int;
}

fun withdrawalSum(requests: WithdrawalRequests): Int {
    let sum: Int = 0;
    let i: Int = 0;
    while(i < requests.n_requests) {
        sum = sum + requests.amounts.get(i)!!;
        i = i + 1;
    }
    return sum;
}