def __init__(self, name): Expression.__init__(self, name)
def __init__(self, name): Expression.__init__(self, name)
def __init__(self, val): Expression.__init__(self, val)
def __init__(self, val): Expression.__init__(self, val)
def __init__(self, name): Expression.__init__(self, name)
def __init__(self, name): Expression.__init__(self, name)
def __init__(self, val): Expression.__init__(self, val)
def __init__(self, val): Expression.__init__(self, val)