Geocoder\Laravel\Providers\GeocoderService::register PHP Method

    public function register()
    {
        AliasLoader::getInstance()->alias('Geocoder', Geocoder::class);
        $this->app->singleton('geocoder', function () {
            $geocoder = new ProviderAndDumperAggregator();
            $geocoder->registerProviders($this->getProviders(collect(config('geocoder.providers'))));
            return $geocoder;
        });
    }