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Contains classes for the system storage service, which manages binary asset filesystems known as Opaque Binary Blobs (OBBs).
| OnObbStateChangeListener | Used for receiving notifications from StorageManagerabout OBB file
 states. | 
| StorageManager | StorageManager is the interface to the systems storage service. | 
| StorageManager.StorageVolumeCallback | Callback that delivers StorageVolumerelated events. | 
| StorageVolume | Information about a shared/external storage volume for a specific user. |