Any way to separate model instantiation from view rendering?

[metaperl]

In examining the bean counter example and the Todo example, I notice that the model is initialized/instantiated in the serve method:

@app('/counter')
async def serve(q: Q):
    bean_count = q.client.bean_count or 0
    if q.args.increment:
        q.client.bean_count = bean_count = bean_count + 1

or

    if todos is None:
        q.user.todos = todos = [TodoItem('Do this'), TodoItem('Do that'), TodoItem('Do something else')]

I wonder if a class decorated with @app('/route') with init() and serve methods would allow one to get rid of the if-then checks and initialization that currently marries the view and model?