def __contains__(self, interface):

        return self.extends(interface) and interface in self.interfaces()
Verify that a client and server created with the given contexts can
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/zope/interface/declarations.py/Declaration.__contains__--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/pyopenssl/OpenSSL/test/test_ssl.py/ContextTests._handshake_test