| IntentCallback | Callback for monitoring Intents captured by Instrumentation. | 
| IntentMonitor | Interface for tests to use when they need to monitor intents used to start activities from
 the current Instrumentation. | 
| IntentStubber | Interface to intercept activity launch for a given Intentand stubInstrumentation.ActivityResultits response. | 
| IntentMonitorRegistry | Exposes an implementation of IntentMonitorto users. | 
| IntentStubberRegistry | Exposes an implementation of IntentStubber. |