#### Create package for a Laravel method

I have a laravel method inside on one of my controllers. I have used it on two of my projects so I thought of making a package for that specific method so that I can just require it on my future projects.

I was able to put it on github and packagist, but I cannot make it work on a laravel project.

Here are what I have so far:

Composer.json :

"autoload": {
"psr-4": {
"App": "app/",
"vendorpackage": "src/"
}
},
"extra": {
"laravel": {
"providers": [
"vendorpackagePackageServiceProvider"
],
"aliases": {}
}
},
"require": {}


ServiceProvider :

namespace vendorpackage;

use IlluminateSupportServiceProvider;

class PackageServiceProvider extends ServiceProvider
{
public function boot()
{
//
}

public function register()
{
//
}
}


Now, here is where I am stock. What should I do next to make the function below working as a package:

public function sumThis($first_number,$second_number)
{
$sum =$first_number + $second_number; return$sum;
}


Source: Laravel