code: def rdf_catalog():
      '''Root RDF endpoint with content negociation handling'''
      format = RDF_EXTENSIONS[negociate_content()]
      url = url_for('site.rdf_catalog_format', format=format)
      return redirect(urlf rdf_catalog():
      '''Root RDF endpoint with content negociation handling'''
      format = RDF_EXTENSIONS[negociate_content()]
      url = url_for('site.rdf_catalog_format', format=format)
      return redirect(url)
docs: Root RDF endpoint with content negociation handling