def contains_(self, item):
        return WhereClause(six.text_type(self), ContainsOperator(), item)
Simplify a :class:`Complement`.
dataset/ETHPy150Open datastax/python-driver/cassandra/cqlengine/query.py/AbstractQueryableColumn.contains_--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/sets/sets.py/Complement.reduce