params := s.Params()
	newParams := param.NewParams()
	for _, nsKey := range []param.WellKnown{param.Namespace, param.SystemNamespace} {
		if params.ContainsWellKnown(nsKey) {
			val := params.GetWellKnown(nsKey)
			if strVal, ok := val.(string); ok {
				newParams.SetWellKnown(nsKey, namespace.Static(strVal))
			}
		}
	}
	return s.WithParams(newParams)
}

func (b *Builder) addYAML(s Source) {