Encounter a problem while running the ACORN example.

[AdeelAslamUnimore]

Hi,
I encounter a problem while running the ACORN example.

Example Code Missing metadata Parameter in IndexACORNFlat Constructor

Description:
The provided example for IndexACORNFlat is missing the required std::vector<int>& metadata parameter.

The example should initialize the IndexACORNFLAT:

std::vector<int> metadata.............; 
faiss::IndexACORNFlat acorn_gamma(d, M, gamma,  metadata, M_beta);

instead of.
faiss::IndexACORNFlat acorn_gamma(d, M, gamma, M_beta);

Error encountered:
Without metadata, the example does not compile.

Request:
Would it be possible to update the complete example using random values instead of the fvecs file? This would greatly help in making the example more understandable. Thank you for being so considerate!

[gongyguo]

I have similar questions, could you provide a simple and complete example for testing? Also, I noticed that the metadata is constructed by using 1D vector, can you provide some instructions on how to deal with higher dimensional Structured Data, such as datasets like LAION and Tripclick? Thanks for your help!