import Courier from '@trycourier/courier';

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

const journeyTemplateGetResponse = await client.journeys.templates.replace('x', {
  templateId: 'x',
  notification: {
    brand: { id: 'id' },
    content: { elements: [{}], version: '2022-01-01' },
    name: 'name',
    subscription: { topic_id: 'topic_id' },
    tags: ['string'],
  },
});

console.log(journeyTemplateGetResponse.id);

{
  "name": "Welcome email v2",
  "tags": [],
  "brand": null,
  "subscription": null,
  "content": {
    "scope": "default",
    "version": "2022-01-01",
    "elements": []
  }
}