code: function createSingpostEntity(id, html) {
      let $ = parser.load(html)
  
      let date = []
      $('span.tacking-date').each(function (i, elem) {
          date.push($(this).text().trim())
      })
  
      let status = []
      $('div.tacking-status').each(function (i, elem) {
          status.push($(this).text().trim())
      })
  
      let messages = []
      for(let i = 0; i < date.length; i++) {
          messages.push({
              date: moment.tz(date[i], "DD-MM-YYYY", zone).format(),
              state: status[i].replace(/ \(Country.+\)/ig, "").trim() // remove '(Country: PT)'
          })
      }
  
      return new SingpostInfo(id, messages)
  }
docs: Create singpost entity from html
  @param id
  @param html