code: def cloak(request, pk=None):
      
      pk = request.POST.get('pk', pk)
      if pk is None:
          return HttpResponse("You need to pass a pk POST parameter, or include it in the URL")
  
      user = get_object_or_404(get_user_model(), pk=pk)
  
      if not can_cloak_as(request.user, user):
          return HttpResponseForbidden("You are not allowed to cloak as this user")
  
      request.session[SESSION_USER_KEY] = user.pk
      # save the referer information so when uncloaking, we can redirect the user
      # back to where they were
      request.session[SESSION_REDIRECT_KEY] = request.META.get("HTTP_REFERER", settings.LOGIN_REDIRECT_URL)
  
      # redirect the cloaked user to the URL specified in the "next" parameter,
      # or to the default redirect URL
      return HttpResponseRedirect(request.POST.get(REDIRECT_FIELD_NAME, settings.LOGIN_REDIRECT_URL))
docs: Masquerade as a particular user and redirect based on the
      REDIRECT_FIELD_NAME parameter, or the LOGIN_REDIRECT_URL.
  
      Callers can either pass the pk of the user in the URL itself, or as a POST
      param.