def METHOD_NAME(request, post_slug):
    post = get_object_or_404(Post, slug=post_slug)
    initial = {
        "text": render_html_message("channel_post_announce.html", post=post),
        "image": extract_any_image(post),
    }
    if request.method == "POST":
        form = PostAnnounceForm(request.POST, initial=initial)
        if form.is_valid():
            announce_in_club_channel(
                post=post,
                announce_text=form.cleaned_data["text"],
                image=form.cleaned_data["image"] if form.cleaned_data["with_image"] else None
            )
            return render(request, "message.html", {
                "title": "Запощено ✅"
            })
    else:
        form = PostAnnounceForm(initial=initial)
    return render(request, "admin/simple_form.html", {
        "title": "Анонсировать пост на канале",
        "post": post,
        "form": form
    })