import Courier from '@trycourier/courier';

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

const check = await client.notifications.checks.update('submissionId', {
  id: 'id',
  checks: [{ id: 'id', status: 'RESOLVED', type: 'custom' }],
});

console.log(check.checks);

{
  "checks": [
    {
      "id": "<string>",
      "status": "RESOLVED",
      "type": "custom",
      "updated": 123
    }
  ]
}