# File lib/active_support/vendor/i18n-0.4.1/i18n/backend/flatten.rb, line 69
      def flatten_translations(locale, data, escape, subtree)
        hash = {}
        flatten_keys(data, escape) do |key, value|
          if value.is_a?(Hash)
            hash[key] = value if subtree
          else
            store_link(locale, key, value) if value.is_a?(Symbol)
            hash[key] = value
          end
        end
        hash
      end