When cleaning up the models we need to make sure to update the QE tests so they continue to function correctly.

For example:

last_process_complete_date
last_manifest_complete_date

entries too:

elif stat.get("process_complete_date") is None:
 LOG.info("Line item processing not complete for source %s.", source_uuid)
 return

elif stat.get("manifest_complete_date") is None:
 LOG.info("Summary processing not complete for source %s.", source_uuid)
 return

And also update get_manifest_modified_datetime, manifest_modified_datetime as follows:

def get_export_datetime(application, source_uuid):
 source_stats = call_api_raw("/sources/" + source_uuid + "/stats/", application)
 date = list(source_stats.values())[-1]["manifests"][0]["export_datetime"]