docs: private static void addRetrieveInternalModelTimestamp(CtClass clazz) throws NotFoundException,
          CannotCompileException {
          CtClass[] params = generateClassField();
          CtMethod method = new CtMethod(cp.get(Long.class.getName()), "retrieveInternalModelTimestamp", params, clazz);
          StringBuilder builder = new StringBuilder();
          builder.append(createTrace("Called retrieveInternalModelTimestamp"))
              .append(String.format("return (Long) ((OpenEngSBModelEntry)%s.get(\"%s\")).getValue();",
                  TAIL_FIELD, EDBConstants.MODEL_TIMESTAMP));
          method.setBody(createMethodBody(builder.toString()));
          clazz.addMethod(method);
      }