Assert when attaching a listener that the type is a function.
Assert when attaching a listener that the type is a function.

TanayParikh/foam2,TanayParikh/foam2,foam-framework/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2,foam-framework/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2,foam-framework/foam2,TanayParikh/foam2,TanayParikh/foam2,jacksonic/vjlofvhjfgm