同步账户信息

        Arguments:
            broker_id {[type]} -- [description]
            account_cookie {[type]} -- [description]

def sync_account(self, broker_name, account_cookie):
        """同步账户信息

        Arguments:
            broker_id {[type]} -- [description]
            account_cookie {[type]} -- [description]
        """
        try:
            if isinstance(self.broker[broker_name], QA_BacktestBroker):
                pass
            else:
                self.session[account_cookie].sync_account(
                    self.broker[broker_name].query_positions(account_cookie)
                )
            return True
        except Exception as e:
            print(e)
            return False