How to show all child issues of an Initiative?

Question

Our issue hierarchy is as follows:

Initiative >> Portfolio Epic >> Epic >> Story/Task/Spike, etc.

Question: Is there a query I can use to display all the children of an Initiative, up to and including the Story level? For instance, if I specify the Initiative ‘INIT-123’, the resulting query would display all of its childen, including Portfolio Epics, Epics, and Stories/Tasks/Spikes, etc.

Technical information:

* JIRA Data Center v9.12.11
* ScriptRunner v8.38.0

Ogden Rojas_z9sebq · Accepted Answer

Looks like I found the answer after some more searching.

issue in childIssuesOf("INIT-123")