def serve_concatenated_pdf_from_memory(
        pdf_plans: Iterable[PdfPlan],
        start_recto: bool = True,
        offered_filename: str = "crate_download.pdf") -> HttpResponse:
    """
    Concatenates PDFs into memory and serves it.
    WATCH OUT: may not apply e.g. wkhtmltopdf options as you'd wish.
    """
    pdf = get_concatenated_pdf_in_memory(pdf_plans, start_recto=start_recto)
    return serve_buffer(pdf,
                        offered_filename=offered_filename,
                        content_type=MimeType.PDF,
                        as_attachment=False,
                        as_inline=True)
Concatenates PDFs into memory and serves it.
    WATCH OUT: may not apply e.g. wkhtmltopdf options as you'd wish.