def add_swagger(app, json_route, html_route, **kwargs):
    """
    a convenience method for both adding a swagger.json route,
    as well as adding a page showing the html documentation
    """
    app.route(json_route)(create_swagger_json_handler(app, **kwargs))
    add_swagger_api_route(app, html_route, json_route)
a convenience method for both adding a swagger.json route,
    as well as adding a page showing the html documentation