code: public void setPremiumSMS(Object shortcode, Object keyword, Object tariff, Object mid) {
          final Map<String, Object> premiumSMSConfig = new LinkedHashMap<String, Object>(4);
          premiumSMSConfig.put("shortcode", shortcode);
          premiumSMSConfig.put("keyword", keyword);
          premiumSMSConfig.put("tariff", tariff);
          premiumSMSConfig.put("mid", mid);
          this.typeDetails = premiumSMSConfig;
          this.type = MsgType.premium;
      }
docs: Setup premium SMS type
  
  @param shortcode
  @param keyword
  @param tariff
  @param mid