What problem are you facing?

When I use await collection.indexes(), it claims to return Document, but actually it returns an array. So it should be Document[] or something more specific like IndexDescription[]

See: https://github.com/mongodb/node-mongodb-native/blob/4.1/src/collection.ts#L1193

What driver and relevant dependency versions are you using?

mongodb 4.1

Steps to reproduce?

Try to use for(const index of await collection.indexes()) in a TypeScript project.
You will get the error: TS2488: Type 'Document' must have a '[Symbol.iterator]()' method that returns an iterator.