At the API level, Savings Accounts work the following way:
IB-Deposit-US
View API
import os
from synapse_pay_rest import Client
from synapse_pay_rest import User
from synapse_pay_rest.models.nodes import IbDepositUsNode
kwargs = {
'nickname': 'My Savings Account'
}
node = IbDepositUsNode.create(user, **kwargs)