internal static extern Status ToMsgPack( CompactCiphertextBallotHandle handle, out IntPtr data, out UIntPtr size);
internal static extern Status GetObjectId( CompactCiphertextBallotHandle handle, out IntPtr object_id);
internal static extern Status FromMsgPack( byte *data, ulong size, out CompactCiphertextBallotHandle handle);
internal static extern Status Free(CompactCiphertextBallotHandle handle);