Como adicionar uma cláusula Where simples com o bookshelf-pagemaker

Usando oestante de páginasMódulo NodeJS: https://www.npmjs.com/package/bookshelf-pagemaker [https://www.npmjs.com/package/bookshelf-pagemaker] https://github.com/bhoriuchi/bookshelf-pagemaker [https://github.com/bhoriuchi/bookshelf-pagemaker].. ...