# File lib/vendor/i18n/lib/i18n/backend/simple.rb, line 205
        def deep_symbolize_keys(hash)
          hash.inject({}) { |result, (key, value)|
            value = deep_symbolize_keys(value) if value.is_a? Hash
            result[(key.to_sym rescue key) || key] = value
            result
          }
        end