D13

'channels' => [
        'stack' => [
            'driver' => 'stack',
            'channels' => ['single', 'telegram'],
            'ignore_exceptions' => false,
        ],

        'telegram' => [
            'driver' => 'monolog',
            'handler' => Monolog\Handler\TelegramBotHandler::class,
            'with' => [
                'apiKey' => env('TELEGRAM_BOT_TOKEN'),
                'channel' => env('TELEGRAM_BOT_CHAT_ID'),
            ],
        ],
  ],