Open models.py and consider what's missing from the CSVModel class:
- We'll need a method that can retrieve all records in a file so we can display them. We'll call it get_all_records().
- We'll need a method to fetch individual records from the file by row number. We can call this get_record().
- We'll need to save records in a way that can not only append new records, but update existing records as well. We can update our save_record() method to accommodate this.
