Convert Vec<Bson, Global> to Vec<String>

Im truing to use the .distinct method to get all ‘_ids’ in the collection. The .distinct method returns a Vec<Bson, Global> and I would live to convert that to a Vec for exemple.
I tried everything I could but can figure this one out.

This is what I have now:

 let clients_ids = self
            .distinct("_id", None, None)

Should I iterate over each item in the Vec and convert them individualy to String?
In that cause how can I do that?

for item in &clients_ids {
      println!("Bson Item {:?}", item); // prints ObjectId("61842402bcfb83e1b27b6d85")

Thanks you all in advance.

From the docs: Collection in mongodb - Rust