title: Multiples assets into one bundle using Flask-Assets
body: <p>I have couples of CSS files in static directory of my Flask project and couple of SCSS fiels. Now I am compiling SCSS files manualy but I want Flask-Assets do it for me. I know how to prepare bundle of CSS only but is there way to mix into this bundle SCSS filec which must be compiled by <code>filter="pyscss"</code> before bundling?</p>