round

# File activesupport/lib/active_support/number_helper/rounding_helper.rb, line 12
      def round(number)
        precision = absolute_precision(number)
        return number unless precision

        rounded_number = convert_to_decimal(number).round(precision, options.fetch(:round_mode, :default).to_sym)
        rounded_number.zero? ? rounded_number.abs : rounded_number # prevent showing negative zeros
      end