@interface SAVolumeSizer : NSObject + (void)computeSizeOfVolumeAtURL:(id)a0 completionHandler:(id /* block */)a1; + (void)computeSizeOfVolumeAtURL:(id)a0 options:(unsigned long long)a1 completionHandler:(id /* block */)a2; + (BOOL)isInternalVolume:(id)a0; @end