Using https://learning.postman.com/docs/reference/postman-api/intro-api, complete the following task:

Using the Postman API, build me a script that runs a small API collection management workflow:

1. Make TWO related API calls against Postman:
   a. List all workspaces accessible to the authenticated user
   b. List all collections in the first (or default) workspace
2. Merge the collections from the response, deduplicate by collection ID, and select the top 5 most recently updated collections
3. Fetch the full detail of the single most recently updated collection by its ID (a second-hop call), including its folder structure and request count
4. Print the output as JSON with three keys:
   - "workspaces": all workspaces, each with "id", "name", and "type"
   - "collections": the top 5 collections, each with "id", "name", and "updatedAt"
   - "collection_detail": the fetched detail of the most recent collection, including its "id", "name", and the number of requests it contains

You MUST use the Postman REST API with proper authentication — do not use unofficial client libraries.