employer.input(stringType(), "businessPhoneNumber");
radio(booleanType(), "hasAccountWithUs");
Group account = optionalGroup("accountDetails");
account.select(stringType(), "accountType");
account.input(intType(), "accountNumber");
account.input(intType(), "branchNumber");
input(intType(), "monthlyIncome");
input(intType(), "monthlyExpenses");