def METHOD_NAME(request, region_slug):
    """
    Set read flag for a list of feedback items
    :param request: Object representing the user call
    :type request: ~django.http.HttpRequest
    :param region_slug: The slug of the current region
    :type region_slug: str
    :return: A redirection to the region feedback list
    :rtype: ~django.http.HttpResponseRedirect
    """
    region = request.region
    selected_ids = request.POST.getlist("selected_ids[]")
    selected_feedback = Feedback.objects.filter(
        id__in=selected_ids, region=region, is_technical=False
    )
    for feedback in selected_feedback:
        invalidate_obj(feedback)
        if hasattr(feedback, "feedback_ptr"):
            invalidate_obj(feedback.feedback_ptr)
    selected_feedback.update(read_by=request.user)
    logger.debug(
        "Feedback objects %r marked as read by %r",
        selected_ids,
        request.user,
    )
    messages.success(request, _("Feedback was successfully marked as read"))
    return redirect("region_feedback", region_slug=region_slug)