def initial(self, request, *args, **kwargs):
super(NodeImageList, self).initial(request, *args, **kwargs)<EOL>self.node = get_queryset_or_404(<EOL>Node.objects.published().accessible_to(request.user),<EOL>{'<STR_LIT>': self.kwargs['<STR_LIT>']}<EOL>)<EOL>self.check_object_permissions(request, self.node)<EOL>
Custom initial method:
    * ensure node exists and store it in an instance attribute
    * change queryset to return only images of current node