help mising 1 required posisitional rgument

[kobencry]

def Koben(ben, *args, **kwargs):

      try:
            return ben(*args, **kwargs)

      except Exception as err:
            print(type(err))

            raise
a = Koben(nama="koben")
print(a.ben())

Error:
a = Koben(nama="koben")
TypeError: Koben() missing 1 required positional argument: 'ben'