$def with (page) $ dev_pages = ["/developers", "/data", "/developers/api", "/developers/licensing"] $ dev_nav = [ $ ("/developers", _("Developer Center (Home)")), $ ("/developers/api", _("Web API")), $ ("https://github.com/internetarchive/openlibrary-client", _("Client Library")), $ ("/data", _("Data Dumps")), $ ("https://github.com/internetarchive/openlibrary", _("Source Code")), $ ("https://github.com/internetarchive/openlibrary/issues", _("Report an Issue")), $ ("/developers/licensing", _("Licensing")), $ ] $ tour_nav = [ $ ("/tour", _("Welcome")), $ ("/search/howto", _("Searching Open Library")), $ ("/tour/reading", _("Reading Books")), $ ("/tour/books", _("Adding & Editing Books")), $ ("/tour/subjects", _("Using Subjects")), $ ("/help/faq", _("Open Library F.A.Q.")), $ ] $if page.key in dev_pages: