# File lib/heroku/command/pg.rb, line 370
    def size_format(bytes)
      return "#{bytes}B" if bytes < KB
      return "#{(bytes / KB)}KB" if bytes < MB
      return format("%.1fMB", (bytes.to_f / MB)) if bytes < GB
      return format("%.2fGB", (bytes.to_f / GB))
    end