Unable to copy a page and have it save

[ParthGandhi]

Context

I have a nested database with some rows. I want to script creating a new row by coping an existing row OR by using a template.

Describe the bug
Unable to copy a page and have it save

To Reproduce
I first tried to do this outside of a database, just for a regular page but couldn't get it to work.

import { NotionCore } from "@nishans/core";

const nishan = new NotionCore.Api.Nishan({
  token: "XXXXX",
  logger: true,
});

(async () => {
  const pageId = "some-UUID";
  const pages = await nishan.getPagesById([pageId]);
  const page = pages.page.get(pageId);
  const res = await page?.duplicate(1);
  console.log(res);
})();

It outputs some JSON, but I can't find the relevant page on notion or where its copied to. Any ideas on how to do this correctly?

2 additional questions:

1. Is there a way to create a new row in a collection/database using a template? Or copy a row in a database into a new row?
2. Is there a full working example I can use as a reference?
3. Could you update the discord invite? The current link everywhere is invalid.