code: def retrieve(self, request, project, pk=None):
          
          try:
              serializer = JobNoteSerializer(JobNote.objects.get(id=pk))
              return Response(serializer.data)
          except JobNote.DoesNotExist:
              return Response("No note with id: {0}".format(pk), status=HTTP_404_NOT_FOUND)
docs: GET method implementation for a note detail