Handling of automatic variables in ScriptRunner

[Alexander Schüßler]

Dear community,

when working with the ScriptRunner plugin and implementing Post functions, behaviours etc. there are some "automatic" variables being always available in a given context.
Some examples are

* Issue

* sourceIssue

* underlyingIssue

I understand that these are provided by the ScriptRunner plugin.

However when I am working with this I have two issues:

In my IDE (IntelliJ) they are never recognized and a warning "undeclared variable" is thrown.
I wonder if there is any option (maybe using import or annotation) to make them known to the IDE so it will understand that they are some kind of "dynamic global" and also be typed.

I do not know where to find a list of all automatic variables and the context they are available for. I know in Scriptrunner documentation there is a Quick API documentation, but this only shows methods and here I know that these only work for Post functions for instance but not for the scripting console.
Is there any documentation about this variables?

Any good hints are warmly welcome.