docs: def get_shortlink(self, shortlink_id_or_url):
          """Retrieve registered shortlink info
  
          Arguments:
              shortlink_id_or_url:
                  Shortlink id or url, assigned by mCASH
          """
          if "://" not in shortlink_id_or_url:
              shortlink_id_or_url = self.merchant_api_base_url + '/shortlink/' + shortlink_id_or_url + '/'
  
          return self.do_req('GET', shortlink_id_or_url).json()