#{javaClassName.methodName()}
#{StringUtils.toUpper("hello")}
WebMacro wm = new WebMacro();
Template template = wm.getTemplate("path/to/template.wm");
StringWriter writer = new StringWriter();
Context context = template.createContext(writer);
context.put("dynamicData", "World");
template.process(context);
String output = writer.toString();