Function snapps_txn_reference_impl::update_logic::apply_balance_change

pub fn apply_balance_change<'a>(
    account: Account<'a>, 
    balance_change: SignedAmount
) -> Account<'a>

Update the balance field of account::Account by adding the balance_change from party::PartyUpdate using party::wrapping_add_signed.

account.balance = party::wrapping_add_signed(account.balance, balance_change);