 feature to Flow that'll reduce the boiler-plate to just that; maybe some kind of base class or something. <a class="el" href="namespaceboost_1_1system.html" title="Small group of miscellaneous utilities to ease work with boost.system, joining its boost::system name...">boost.system</a> already makes it pretty easy, but even that can probably be "factored out" into Flow. Update: I (ygoldfel) took a look at it for another project, and so far no obvious de-boiler-plate ideas come to mind. Ideally the inputs a