Unable to find "retrieval_database.parquet" file for pretraining

Hello, I was trying to train the model using `pretrain.py`, but I noticed that in the **Google Drive** and **Hugging Face** links you provided, there doesn’t seem to be a retrieval database file in `.parquet` format. 

Could you please let me know where I can find and download this file?  

Thank you for your help.
