Function calculate_swap_amounts 

pub fn calculate_swap_amounts(
    pool_balance_in_token: u64,
    pool_balance_out_token: u64,
    swap_in_amount: u64,
    dao_fee_rate: u32,
    lp_fee_rate: u32,
    creator_fee_rate: u32,
) -> Option<(u64, u64, u64, u64)>