someone knows about how to use neodynamic libraries

I have used these sdk libraries, but I have problems when printing thermal labels, if anyone knows anything this is code, the problem is that I can not print what I load of the datasource. angularjs code

var tlimp = new Neodynamic.Web.Editor.ThermalLabelEditor ();

            var tli = new Neodynamic.SDK.Printing.ThermalLabel.createFromXmlTemplate(ntl.Xml);
            //ntl = angular.fromJson(ntl);
            tli.data_source = ntl;//el datasource aunque se agrega al tli, nunca se toma en cuenta cuando  imprime

tlimp.loadThermalLabel (tli);                // tlimp.enableEditor ();                 tlimp.print ();