Symfony 4.4: using a Logger inside a Service

MyLoggerService.php

<?php

namespace App\Service;

use Psr\Log\LoggerAwareInterface;
use Psr\Log\LoggerInterface;

class MyLoggerService implements LoggerAwareInterface
{
    private LoggerInterface $logger;

    /**
     * Sets a logger instance on the object.
     *
     * @return void
     */
    public function setLogger(LoggerInterface $logger)
    {
        $this->logger = $logger;
    }

    public function log(string $value)
    {
        $this->logger->info($value);
    }
}

The official documentation is at https://symfony.com/doc/4.4/logging.html#using-a-logger-inside-a-service but doesn't include an example of what that service would look like. Here it is ^^

https://symfonycasts.com/screencast/symfony4-fundamentals/logger-trait is a helpful introduction, but their example didn't work for me. Turns out using @required is unnecessary - just implement LoggerAwareInterface and somehow setLogger() magically gets called.