Limit the issue type selection to specific users

<iframe width="560" height="315" src="https://www.youtube.com/embed/PEv7UWvCpQc" frameborder="0" allowfullscreen></iframe>

string [] testers = usersInRole("TEST", "Product Development Tester");

string error = "You do not have permission to create this issue type!";

if(elementExists(testers, currentUser()) && type != "Story") {
    return false, "error", error;
}