framework/php-packages/phpstan/stubs/Illuminate/Support/ServiceProvider.stub

<?php

namespace Illuminate\Support;

use Illuminate\Contracts\Container\Container;

abstract class ServiceProvider
{
    /**
     * The application instance.
     *
     * @var Container
     */
    protected $app;

    /**
     * Create a new service provider instance.
     *
     * @param  Container  $app
     * @return void
     */
    public function __construct($app);
}