def __init__(self, FirstName, LastName, salary, employees=None):
    super().__init__(FirstName, LastName, salary)
    if (employees is None):
        self.employees = []
    else:
        self.employees = employees
def __init__(self, FirstName, LastName, salary, employees=None):
    super().__init__(FirstName, LastName, salary)
    if (employees is None):
        self.employees = []
    else:
        self.employees = employees