Initialize poolmanager with cipher and Tlsv1

def init_poolmanager(self, connections, maxsize,
                         block=requests.adapters.DEFAULT_POOLBLOCK,
                         **pool_kwargs):
        """Initialize poolmanager with cipher and Tlsv1"""
        context = create_urllib3_context(ciphers=self.CIPHERS,
                                         ssl_version=ssl.PROTOCOL_TLSv1)
        pool_kwargs['ssl_context'] = context
        return super(TLSv1Adapter, self).init_poolmanager(connections, maxsize,
                                                          block, **pool_kwargs)