List of issues that releated to PR (by merges)

Hey folks,
I want to get the list of issues by PR Number.

SO scenario like this:
Imagine that we have a PR.
The PR has commits.
And those commits have #ISSUE_NUMBER
So each commit has its message with the issue number related to an issue.

I'm looking for a way to get those issues by providing a Pull Request number.

Could anyone please let me know?

Start by reviewing the wrapper's existing Pull Request and commit-related API entry points. Determine whether commit messages can be mapped to issue numbers for a supplied Pull Request number, then define the returned issue list and verify the behavior against the GitHub API.

Written by the indexing model from the issue text.