Get pull request merged from other repository information from the commit history

[QinhaoChang]

Greetings, I would like to extend my gratitude of the hardwork of this Library. I would like to know if there is a possibility that we could have a functionality apply to the following scenario:
1 . in an open pull request, it has list of commits. A developer merge a pull request from his forked repo ( or other repo) to his feature branch, and include this merge in a commit in this open pull request. Would it be possible that we use PyGitHub to get that merged pull reuqest information from the commit?
CC: @HowellWang
Thank you in advance and appreciate your time to read this!