This interface determines whether the current user is a spot high-frequency user or a spot low-frequency user.
This interface is a compatibility interface left over from the old version upgrade. Only some old users need to use it (high frequency will be opened before 2024 and trade_hf has been used). Most users do not need to use this interface. When the return is true, you need to use trade_hf to transfer assets and query assets. When the return is false, you need to use trade to transfer assets and query assets.