GetRecords problem with getting the number of k-strings

The okex V5 API interface The k-line history data is available for the most recent 2000 bits, but so using GetRecords to get the most recent 99 bits of k-line data by default, you can use the k-line history data for the most recent 99 bits of k-line data. This is because the okxk line data is page-split, and the default is 99 lines of data per page. I want to get the most recent arbitrary number of k-string data ((less than 2000, greater than 99)). How should you code in python? Please help me, thank you very much.