e.g. the following code, where eGRID is passed as int instead of string will generate an error when saving the inventory
import stewicombo
df = stewicombo.combineInventoriesforFacilitiesinBaseInventory("GHGRP", {"NEI":"2018","GHGRP":"2018", "eGRID":2018}, remove_overlap=True)
stewicombo.saveInventory('my_file', df, {"NEI":"2018","GHGRP":"2018", "eGRID":2018})
pyarrow.lib.ArrowTypeError: ("Expected bytes, got a 'int' object", 'Conversion failed for column Year with type object')
e.g. the following code, where eGRID is passed as int instead of string will generate an error when saving the inventory