def logout(self):
        session = import_module(settings.SESSION_ENGINE).SessionStore()
        session_cookie = self.cookies.get(settings.SESSION_COOKIE_NAME)
        if session_cookie:
            session.delete(session_key=session_cookie.value)
        self.cookies = SimpleCookie()
Updates the value of the column with any type that can be converted
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/test/client.py/Client.logout--crossover with--dataset/ETHPy150Open viewfinderco/viewfinder/backend/db/schema.py/_Value.Set