protected function buildAlias($parsed)
 {
     $builder = new AliasBuilder();
     return $builder->build($parsed);
 }
<?php

include_once 'bootstrap.php';
use SimpleServiceInjector\{ServicesProvider, Container\SimpleServiceContainer, Builder\AliasBuilder};
$servicesArray = new AliasBuilder();
$servicesArray->fromArray($services);
$container = new SimpleServiceContainer($servicesArray);
try {
    $servicesProvider = new ServicesProvider($container);
    echo $servicesProvider->injectServicesOn('Bar');
    echo $servicesProvider->injectServicesOn('TestClass');
    // Test injected service by name
    var_dump($servicesProvider->injectServicesOn('TestClassB', [], true));
} catch (\Exception $e) {
    echo $e->getMessage();
}