def testExistKey__get(self):
        self.registry._actions['foo'] = lambda: 'blah'
        self.assertEqual(self.registry.get('foo'), 'blah')
Set a value in the cache if the key does not already exist. If
dataset/ETHPy150Open xtrementl/focus/tests/unit/test_registry.py/TestRegistry.testExistKey__get--crossover with--dataset/ETHPy150Open django/django/django/core/cache/backends/base.py/BaseCache.add