def listAccounts(filter):
if filter == "active":
accounts = Account.list("active")
elif filter == "deleted":
accounts = Account.list("deleted")
elif filter == "debts":
accounts = Account.list("debts")
elif filter == "staff":
accounts = Account.list("staff")
else:
raise ApiError("Wrong filter, must be one of these: active, deleted, debts, staff")
for account in accounts:
account.balance = str(account.balance)
return [acc.serialize() for acc in accounts]
