What does "template_size" and "dont_expand" in the complete_settings mean?

[pwn2ooown]

I'm setting the completion of this incredible tool now but I have trouble understanding these two statements, can someboby explain the meaning of them? Thanks a lot.

[Jatana]

template_size is the number of template arguments a specific class requires. For example, pair requires two template arguments, vector requires one template argument, and int requires 0 template arguments.

If, for some reason, you do not want an alias to be expanded, you can specify it in the dont_expand option. For instance, normally, vpii is expanded into vector<pair<int, int>>. However, if you add pii to the dont_expand list, then vpii will be expanded only to vector<pii>.

[pwn2ooown]

Thank you Mr. Jatana for explaining these words! And really thank you for developing this powerful tool for CP!