Hi Shaohong,
Thank you for reaching out. In order for me to further investigate, could you please send me the code you used to generate the keyword ideas?
Thanks and regards,
Xiaoming, Google Ads API Team
Hi Shaohong,
I noticed that you are using a third party API wrapper to make the API call. As this is not an official Google library, we could not comment further. I would suggest you contact the library owner to discuss the issue you have encountered.
Thanks and regards,
Xiaoming, Google Ads API Team

Hi Shaohong,
Thank you for reaching out. Since you encountered the same issue on both libraries, it looks like it is mostly a client library specific issue. Could you please open a new thread on the Github Issue Tracker and the library owners will be able to take a look.
Thanks and Regards,
Xiaoming, Google Ads API Team