# File lib/active_record/connection_adapters/fb_adapter.rb, line 249
      def quote_object(obj)
        if obj.respond_to?(:quoted_id)
          obj.quoted_id
        elsif obj.respond_to?(:to_str)
          "@#{Base64.encode64(obj.to_str).chop}@"
        else
          "@#{Base64.encode64(obj.to_yaml).chop}@"
        end
      end