def METHOD_NAME(self):
    invalid_filters = check_filters(self, ["sample_accession_code"])
    if invalid_filters:
        raise InvalidFilters(invalid_filters=invalid_filters)
    queryset = DownloaderJob.objects.all()
    sample_accession_code = self.request.query_params.get("sample_accession_code", None)
    if sample_accession_code:
        queryset = queryset.filter(
            original_files__samples__accession_code=sample_accession_code
        ).distinct()
    return queryset