Firebase.
  Summary
| Enumerations | |
|---|---|
| Error{ | enum Installations error codes.  | 
| Classes | |
|---|---|
| Firebase. | Installations provides a unique identifier for each app instance and a mechanism to authenticate and authorize actions (for example, sending an FCM message). | 
Enumerations
Error
Error
Installations error codes.
| Properties | |
|---|---|
| InvalidConfiguration | Some of the parameters of the request were invalid. | 
| NoAccess | Installations service cannot be accessed. | 
| Unknown | An unknown error occurred. |