findServiceIdsContaining example

        $kernel = $this->getApplication()->getKernel();
        $object = $this->getContainerBuilder($kernel);

        if ($input->mustSuggestArgumentValuesFor('name')
            && !$input->getOption('tag') && !$input->getOption('tags')
            && !$input->getOption('parameter') && !$input->getOption('parameters')
            && !$input->getOption('env-var') && !$input->getOption('env-vars')
            && !$input->getOption('types') && !$input->getOption('deprecations')
        ) {
            $suggestions->suggestValues($this->findServiceIdsContaining(
                $object,
                $input->getCompletionValue(),
                (bool) $input->getOption('show-hidden')
            ));

            return;
        }

        if ($input->mustSuggestOptionValuesFor('tag')) {
            $suggestions->suggestValues($object->findTags());