CJS to ESM example

When trying to run this example from the docs.

For the CJS version it runs fine, but I can't run the ESM version.

Error

The error I'm getting is:

import fs from 'node:fs';
^^^^^^

SyntaxError: Cannot use import statement outside a module
    at minimalRunCjs (node:internal/main/mksnapshot:209:16)

Steps to reproduce:

$ cd esm/

$ node --snapshot-blob snapshot.blob --build-snapshot entry.js

Expected behaviour

For the CJS version it works as expected, steps:

$ cd cjs/

$ node --snapshot-blob snapshot.blob --build-snapshot entry.js

The above command creates the snapshot.blob file.

See the contents of book1.en_US.txt:

$ BOOK_LANG=en_US node --snapshot-blob snapshot.blob book1

Output:

> US

See the contents of book1.es_ES.txt:

$ BOOK_LANG=es_ES node --snapshot-blob snapshot.blob book1

Output:

> ES

See the contents of book2.zh_CN.txt:

$ BOOK_LANG=zh_CN node --snapshot-blob snapshot.blob book2

Output:

> CN