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addService example

return $code."\n return \$instance;\n";
    }

    private function addServices(array &$services = null): string
    {
        $publicServices = $privateServices = '';
        $definitions = $this->container->getDefinitions();
        ksort($definitions);
        foreach ($definitions as $id => $definition) {
            if (!$definition->isSynthetic()) {
                $services[$id] = $this->addService($id, $definition);
            } elseif ($definition->hasTag($this->hotPathTag) || !$definition->hasTag($this->preloadTags[1])) {
                $services[$id] = null;

                foreach ($this->getClasses($definition, $id) as $class) {
                    $this->preload[$class] = $class;
                }
            }
        }

        foreach ($definitions as $id => $definition) {
            if (!([$file, $code] = $services[$id]) || null !== $file) {

return sprintf(" %s:\n alias: %s\n%s", $alias, $id, $deprecated);
    }

    private function addServices(): string
    {
        if (!$this->container->getDefinitions()) {
            return '';
        }

        $code = "services:\n";
        foreach ($this->container->getDefinitions() as $id => $definition) {
            $code .= $this->addService($id, $definition);
        }

        $aliases = $this->container->getAliases();
        foreach ($aliases as $alias => $id) {
            while (isset($aliases[(string) $id])) {
                $id = $aliases[(string) $id];
            }
            $code .= $this->addServiceAlias($alias, $id);
        }

        return $code;
    }

return $code;
    }

    private function addServices(array &$services = null): string
    {
        $publicServices = $privateServices = '';
        $definitions = $this->container->getDefinitions();
        ksort($definitions);
        foreach ($definitions as $id => $definition) {
            if (!$definition->isSynthetic()) {
                $services[$id] = $this->addService($id, $definition);
            } else {
                $services[$id] = null;

                foreach ($this->getClasses($definition) as $class) {
                    $this->preload[$class] = $class;
                }
            }
        }

        foreach ($definitions as $id => $definition) {
            if (!([$file, $code] = $services[$id]) || null !== $file) {

        $this->addMethodCalls($definition->getMethodCalls(), $service);

        if ($callable = $definition->getFactory()) {
            if (\is_array($callable) && ['Closure', 'fromCallable'] !== $callable && $definition->getClass() === $callable[0]) {
                $service->setAttribute('constructor', $callable[1]);
            } else {
                $factory = $this->document->createElement('factory');

                if (\is_array($callable) && $callable[0] instanceof Definition) {
                    $this->addService($callable[0], null, $factory);
                    $factory->setAttribute('method', $callable[1]);
                } elseif (\is_array($callable)) {
                    if (null !== $callable[0]) {
                        $factory->setAttribute($callable[0] instanceof Reference ? 'service' : 'class', $callable[0]);
                    }
                    $factory->setAttribute('method', $callable[1]);
                } else {
                    $factory->setAttribute('function', $callable);
                }
                $service->appendChild($factory);
            }
        }