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com.google.firebase.iid

Interfaces

InstanceIdResult Result object obtained from requests for an Instance ID and token. 

Classes

FirebaseInstanceId Firebase Instance ID provides a unique identifier for each app instance and a mechanism to authenticate and authorize actions (example: sending FCM messages). 
FirebaseInstanceIdReceiver WakefulBroadcastReceiver that receives FirebaseInstanceId and FirebaseMessaging events and delivers them to the application-specific FirebaseInstanceIdService subclass.