if err != nil {
			errs = multierror.Append(errs, multierror.Prefix(err, fmt.Sprintf("failed to decode file %s: ", path)))
			return warnings, errs
		}
		if len(raw) == 0 {
			continue
		}
		out := transformInterfaceMap(raw)
		un := unstructured.Unstructured{Object: out}
		warning, err := v.validateResource(*istioNamespace, defaultNamespace, &un, writer)
		if err != nil {