Prestashop 1.7 - how to check if current user has access to admin page?

[forexknight]

Hello,

I have a module with admin controller:

class MyCustomController extends FrameworkBundleAdminController
{
    public function someMethod(Request $request) {
		// How to check if current user has access to admin?
    }
}

I would like to know how can I check if current user has access to admin panel, due to security reasons. Normally in symfony I would use $this->isGranted('ROLE_ADMIN'). 
Thanks.