Missing 'map_idx_to_ids' function in entity linking example

[fonshartendorp]

I get a not defined error when trying to build the Faiss-index using the code from build_index.py in the entity linking example (NeMo/examples/nlp/entity_linking/build_index.py)

On line 25: NameError: name 'map_idx_to_ids' is not defined

I looked for the implementation of the function elsewhere in the repository, but couldn't find it. I also believe it is not imported from another module, is it?

Am I missing something?