) -> str:
    # Set metadata["social"]["cards_layout_options"]["title"] to clean title (without
    # permalink)
    title = page.title
    clean_title = title.split("{ #")[0]
    if clean_title:
        page.meta.setdefault("social", {})
        page.meta["social"].setdefault("cards_layout_options", {})
        page.meta["social"]["cards_layout_options"]["title"] = clean_title

    if isinstance(page.file, EnFile):