import Courier from '@trycourier/courier';

const client = new Courier({
  apiKey: process.env['COURIER_API_KEY'], // This is the default and can be omitted
});

const checks = await client.notifications.checks.list('submissionId', { id: 'id' });

console.log(checks.checks);

{
  "checks": [
    {
      "id": "<string>",
      "updated": 123
    }
  ]
}