Package testapi provides a helper for retrieving the KUBE_TEST_API environment variable.
TODO(lavalamp): this package is a huge disaster at the moment. I intend to refactor. All code currently using this package should change: 1. Declare your own registered.APIGroupRegistrationManager in your own test code. 2. Import the relevant install packages. 3. Register the types you need, from the announced.APIGroupAnnouncementManager.