Create ACF Object Using REST API

In this documentation: https://www.advancedcustomfields.com/resources/wp-rest-api-integration/#request-methods it mentions three REST methods:

• GET to view data
• OPTIONS to request schema
• POST to update ACF fields

The POST method requires an ID of an already-created object – {ID} in the following:

apiFetch( {
  path: '/wp/v2/book/{ID}',

But what if I don’t already have an ID? Is it possible to create a new ACF object (a new book in this case) instead of modifying an existing one? I want to populate my site with a bunch of historical data, and the API seems like the easiest way to do that, but only if I can create new objects.