def __init__(self, id_nbr, principal, rate, minimum, frequency=12):
    self.id = id_nbr
    self.principal = principal
    self.rate = rate
    self.minimum = minimum
    self.frequency = frequency
def __init__(self, id_nbr, principal, rate, minimum, frequency=12):
    self.id = id_nbr
    self.principal = principal
    self.rate = rate
    self.minimum = minimum
    self.frequency = frequency