feat: upgrading simple api to drf compatible.

lms/djangoapps/instructor/views/api.py

@@ -1000,7 +1000,10 @@ class ModifyAccess(APIView):
 
     @method_decorator(ensure_csrf_cookie)
     def post(self, request, course_id):
-
+        """
+        Modify staff/instructor access of other user.
+        Requires instructor access.
+        """
         course_id = CourseKey.from_string(course_id)
         course = get_course_with_access(
             request.user, 'instructor', course_id, depth=None

lms/djangoapps/instructor/views/serializer.py

@@ -5,7 +5,6 @@
 from django.utils.translation import gettext as _
 from rest_framework import serializers
 from .tools import get_student_from_identifier
-from common.djangoapps.util.json_request import JsonResponse
 
 from lms.djangoapps.instructor.access import ROLES
 
@@ -33,6 +32,11 @@ class Meta:
 
 
 class AccessSerializer(serializers.Serializer):
+    """
+    Serializer for managing user access changes.
+    This serializer validates and processes the data required to modify
+    user access within a system.
+    """
     unique_student_identifier = serializers.CharField(
         max_length=255,
         help_text="Email or username of user to change access"