fix type error for ordered sets

home/export_ordered_sets.py

@@ -4,7 +4,7 @@
 from dataclasses import asdict, astuple, dataclass, fields
 from math import ceil
 
-from django.http import HttpResponse
+from django.http import HttpResponse  # type: ignore 
 from openpyxl.styles import Font, NamedStyle
 from openpyxl.utils import get_column_letter
 from openpyxl.workbook import Workbook