How to use the flasgger.base.APISpecsView.as_view function in flasgger

blueprint.add_url_rule(
                '/apidocs/index.html',
                view_func=lambda: redirect(url_for('flasgger.apidocs'))
            )
        else:
            blueprint = Blueprint(
                self.config.get('endpoint', 'flasgger'),
                __name__
            )

        for spec in self.config['specs']:
            self.endpoints.append(spec['endpoint'])
            blueprint.add_url_rule(
                spec['route'],
                spec['endpoint'],
                view_func=wrap_view(APISpecsView.as_view(
                    spec['endpoint'],
                    loader=partial(
                        self.get_apispecs, endpoint=spec['endpoint'])
                ))
            )

        app.register_blueprint(blueprint)