SetVolumeTool

Sets the volume of an audio stream (media, ring, alarm, or notification; default media), clamping the level to the stream's max. The underlying AudioManager call needs no permission, so SettingsTools always registers this tool. (Changing the ring/notification stream while Do Not Disturb is active may throw SecurityException, reported as an error.)

Output keys on success: success (true), stream, level (clamped), max_level.