def __add__(self, *args):
    ' x.__add__(y) <==> x+yx.__add__(y) <==> x+yx.__add__(y) <==> x+yx.__add__(y) <==> x+y '
    pass
x.__add__(y) <==> x+yx.__add__(y) <==> x+yx.__add__(y) <==> x+yx.__add__(y) <==> x+y
def __add__(self, *args):
    '  '
    pass