# File lib/mongo/error/bulk_write_error.rb, line 40
      def to_s
        messages = if errors = result['writeErrors']
          frag = ': ' + errors[0..10].map do |error|
            "#{error['errmsg']} (#{error['code']})"
          end.join(', ')
          if errors.length > 10
            frag += '...'
          else
            frag
          end
        else
          ''
        end
        self.class.name + messages
      end