Is it possible for an included file inside a class method to be class aware so if I write $this-> the autocompletion pops up with all class methods etc. I can choose from?

class A {
function f1() { }
function f2() { include file2.php; }
}

and inside file2.php:
$this-> // here I want autocompletion for the class A methods etc.

Maybe using some custom phpdoc at the start of file2, like @ofclass A, or something..

Thanks.

Edit:
I found the solution by myself, it was rather obvious.
I just document the first use of $this variable inside the included file with phpdoc ( /** @var MyClass */ ) and it works further on.