Current version (Version 0.1.1-beta)
There's no current documentation about adding multiple labels.
How can multiple labels be added in Neo4j Data Importer?
Alternatively, you can also import those specific types using an import type statement. There's more information here in the Typescript's 3.8 documentation.
import neo4j from 'neo4j-driver';
import type { Driver, Session } from 'neo4j-driver';
const ...