scriptrunner issue function in issue function

[Alistair Attrill]

Some help with a nested issue function please

I can run this and it works (issueFunction in linkedIssuesOfRecursiveLimited("issuetype= "Objective" ", 1))

but i then want to see all the children of these

issueFunction in issuesInEpics((issueFunction in linkedIssuesOfRecursiveLimited("issuetype= "Objective" ", 1)))

So i add the issues in epic but i get the 

issuesInEpics: Failed to get issues

What am i doing wrong?