118     def update(self, other):  argument
124     def __ior__(self, other):  argument
128     def difference(self, other):  argument
134     def difference_update(self, other):  argument
136     def __isub__(self, other):  argument
145     def intersection(self, other):  argument
149     def intersection_update(self, other):  argument
151     def __iand__(self, other):  argument
157     def issubset(self, other):  argument
161     def __lt__(self, other):  argument
164     def issuperset(self, other):  argument
168     def __gt__(self, other):  argument
171     def __eq__(self, other):  argument
176     def __ne__(self, other):  argument
182     def symmetric_difference(self, other):  argument
188     def symmetric_difference_update(self, other):  argument
190     def __ixor__(self, other):  argument
199     def union(self, other):  argument
203     def isdisjoint(self, other):  argument