_normalize_text

# File actionpack/lib/action_controller/metal/rendering.rb, line 81
    def _normalize_text(options)
      RENDER_FORMATS_IN_PRIORITY.each do |format|
        if options.key?(format) && options[format].respond_to?(:to_text)
          options[format] = options[format].to_text
        end
      end
    end