def multiply(baseSalary = None, raiseAmount = None):
    """This function supports the HR application related to the salary raise of employees.

    This function takes base salary, and a multiplicatant.
    It produces the raised salary for the employee.

    Arguments:
        baseSalary : int(the base salary)
        raiseAmount : float(the muliplier, or raise amount)

    Returns:
        double (the raised salary)
    """
    if not isinstance(baseSalary, int):
        raise ValueError("The baseSalary must be an integer!")
    if not isinstance(raiseAmount, float):
        raise ValueError("The raiseAmount must be a float value!")

    if baseSalary and raiseAmount:
        return round(baseSalary * raiseAmount,2)
    else:
        return None