code: public List<FaceletTaglibFunctionType<WebFacelettaglibraryDescriptor>> getAllFunction()
     {
        List<FaceletTaglibFunctionType<WebFacelettaglibraryDescriptor>> list = new ArrayList<FaceletTaglibFunctionType<WebFacelettaglibraryDescriptor>>();
        List<Node> nodeList = model.get("function");
        for(Node node: nodeList)
        {
           FaceletTaglibFunctionType<WebFacelettaglibraryDescriptor>  type = new FaceletTaglibFunctionTypeImpl<WebFacelettaglibraryDescriptor>(this, "function", model, node);
           list.add(type);
        }
        return list;
     }
docs: Returns all <code>function</code> elements
  @return list of <code>function</code>