add a new URL to see if this causes the openapi check to fail

sandbox/urls.py

@@ -3,7 +3,7 @@
 from django.urls import include, re_path
 from rest_framework import routers
 
-from sandbox.views import SandboxViewSet
+from sandbox.views import SandboxViewSet, return_nothing
 
 v0_router = routers.DefaultRouter()
 
@@ -16,4 +16,5 @@
 app_name = "v0"
 urlpatterns = [
     re_path("^api/v0/", include((v0_router.urls, "v0"))),
+    re_path("^api/v0/sandbox/return_nothing", return_nothing),
 ]

sandbox/views.py

@@ -3,6 +3,7 @@
 from drf_spectacular.openapi import OpenApiParameter, OpenApiTypes
 from drf_spectacular.utils import extend_schema, inline_serializer
 from rest_framework import status
+from rest_framework.decorators import api_view
 from rest_framework.response import Response
 from rest_framework.serializers import CharField, IntegerField
 from rest_framework.viewsets import ViewSet
@@ -70,3 +71,17 @@ def retrieve(self, request, id: int):  # noqa: A002, ARG002
         except StopIteration:
             return Response(status=status.HTTP_404_NOT_FOUND)
         return Response(item)
+
+
+@extend_schema(
+    description=("Retrieves the list of sandbox values."),
+    methods=["GET"],
+    request=None,
+    responses=SANDBOX_SERIALIZER,
+    operation_id="sandbox_zen_api_list",
+)
+@api_view(["GET"])
+def return_nothing(request):  # noqa: ARG001
+    """Return nothing."""
+
+    return Response()