code: def _prepare_account(self, user="", password="", **kwargs):
          
          if "portfolio_code" not in kwargs:
              raise TypeError("雪球登录需要设置 portfolio_code(组合代码) 参数")
          if "portfolio_market" not in kwargs:
              kwargs["portfolio_market"] = "cn"
          if "cookies" not in kwargs:
              raise TypeError(
                  "雪球登陆需要设置 cookies， 具体见"
                  "https://smalltool.github.io/2016/08/02/cookie/"
              )
          self.account_config = {
              "cookies": kwargs["cookies"],
              "portfolio_code": kwargs["portfolio_code"],
              "portfolio_market": kwargs["portfolio_market"],
          }
docs: 转换参数到登录所需的字典格式
          :param cookies: 雪球登陆需要设置 cookies， 具体见
              https://smalltool.github.io/2016/08/02/cookie/
          :param portfolio_code: 组合代码
          :param portfolio_market: 交易市场， 可选['cn', 'us', 'hk'] 默认 'cn'
          :return: