请问miniqmt模式信用账户使用哪个api函数查询资产？

    asset=xtquant_client.query_credit_detail(account)
    balance={"id":asset.account_id,"cash":asset.m_dAvailable,"frozen":asset.m_dFrozenCash,"value":asset.m_dMarketValue,"total":asset.m_dBalance}

使用这样查询query_credit_detail返回的结构里都是空的。

AttributeError: 'list' object has no attribute 'm_dAvailable'

AttributeError: 'list' object has no attribute 'account_id'