Loading vendor helper into global namespace

Look in the root of the app folder just under the Views folder see the file Common.php that is for loading
things you need first.

I've looked into Common.php and I understand that I can define a function there that will be globally accessed. But the question was about loading a Vendor Helper into global namespace and if there is a neat solution for that in CodeIngiter.

At the moment there's also no way of using VENDORPATH in Common.php thus I'm back with requesting my helper almost like I did in app/Config/Autoload.php

PHP Code:

require_once  '../vendor/myname/mypackage/src/Helpers/myhelper_helper.php'; 


Is there a way to achieve global namespace helper declaration from within a vendor/..../package without alteration of the main application?