mongosh shell API adds Session.bulkWrite()
When repository code needs to submit multiple MongoDB writes through a session, call `Session.bulkWrite(operations, options)` with an array of write-operation documents. The operation requires MongoDB 8.0 or later.
const session = db.getMongo().startSession();
session.bulkWrite([
{ namespace: "<db>.<collection>", name: "insertOne", document: { <field>: <value> } },
{ namespace: "<db>.<collection>", name: "updateOne", filter: { <field>: <value> }, update: { $set: { <field>: <value> } } }
]);