privates['monolog.handler.deprecation'] = $instance = new \Monolog\Handler\StreamHandler('php://stderr', 'DEBUG', true, NULL, false); $instance->pushProcessor(($container->privates['monolog.processor.psr_log_message'] ??= new \Monolog\Processor\PsrLogMessageProcessor())); $instance->setFormatter(($container->privates['monolog.formatter.json'] ??= new \Monolog\Formatter\JsonFormatter())); return $instance; } }