getCollectionEntity example

protected function configure(): void
    {
        $this->addArgument('class', InputArgument::REQUIRED);
        $this->addArgument('name', InputArgument::REQUIRED);
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        /** @var class-string $class */
        $class = $input->getArgument('class');
        $entityClass = $this->getCollectionEntity($class);
        $name = $input->getArgument('name');

        if ($entityClass === null) {
            file_put_contents($this->getFilePath($name), json_encode($this->dumpProperties($class), \JSON_PRETTY_PRINT));
        } else {
            $collection = [
                'type' => 'array',
                'items' => $this->dumpProperties($entityClass),
            ];

            file_put_contents($this->getFilePath($name), json_encode($collection, \JSON_PRETTY_PRINT));
        }