*

# File activesupport/lib/active_support/duration.rb, line 66
      def *(other)
        if Duration === other
          new_parts = other._parts.transform_values { |other_value| value * other_value }
          new_value = value * other.value

          Duration.new(new_value, new_parts, other.variable?)
        else
          calculate(:*, other)
        end
      end