pub unsafe extern "C" fn virStorageVolDownload(
vol: virStorageVolPtr,
stream: virStreamPtr,
offset: c_ulonglong,
length: c_ulonglong,
flags: c_uint,
) -> c_intpub unsafe extern "C" fn virStorageVolDownload(
vol: virStorageVolPtr,
stream: virStreamPtr,
offset: c_ulonglong,
length: c_ulonglong,
flags: c_uint,
) -> c_int