It changes the metadata filename from few_shot_metadata_few_shot_metadata_<etc> to few_shot_metadata_<etc>.
It fixes a bug where the metadata object wouldn't read word_ids.csv unless it was in the local directory. This wouldn't be a problem if you preprocessed the entire dataset in one shot and you didn't care that highest_word_id was set correctly.
This PR makes two changes to the Metadata class:
few_shot_metadata_few_shot_metadata_<etc>
tofew_shot_metadata_<etc>
.