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Description
For the sum_two_challenge notebook (link), the Solution class template only takes one parameter:
class Solution(object):
def sum_two(self, val):
# TODO: Implement me
pass
That should change to two parameters:
class Solution(object):
def sum_two(self, a, b):
# TODO: Implement me
pass
Otherwise a TypeError is raised with the message:
TypeError: sum_two() takes 2 positional arguments but 3 were given