Accessing associated Jira issue through api

Is it possible to get some ID for the Jira issue associated with an incident using the PagerDuty api? I’ve looked around the documentation and community, and found only this locked post ( from 2018 that seems to conclude that it was at the time impossible. Is this still the case? If so, are there any other recommended ways of finding the issue programmatically?

Thanks in advance!

Yes, when making your API request for a given incident ID, you’ll want to include this additional parameter:{INC_ID}?include[]=external_references

It’s great that these data can be obtained!
But can I update those attributes via the API?