Add user to issue 'Shared with' list via Script Runner

[Michał Ezman]

Hello,
I need to append users to issue shared list (JSD portal - pic. 1) via ScriptRunner. Do anyone know any class/method that with I can achieve it?

(pic. 1)

[Michał Ezman · Accepted solution]

If anybody needs this, we found this class to add participants:
https://docs.atlassian.com/jira-servicedesk/3.8.1/com/atlassian/servicedesk/api/request/participant/RequestParticipantService.html

Although I've problems with it:
https://community.atlassian.com/t5/Jira-questions/ScriptRunner-CustomerRequestQuery-Builder-issue-problem/qaq-p/1135048