Problems in retrieving conflicting keys after setting transaction option ReportConflictingKeys

[YinhaoHu]

In foundationdb-rs documentation, it is said that the transaction can retrieve the conflicting keys after setting the option ReportConflictingKeys in a transaction. See Rust Docs Foundationdb - ReportConflictingKeys

But how can I retrive the conflicting keys from txn1_result below? After I commit the transaction, there seems no way for me to retrive that in this Rust code snippet:

let txn_1 = db.create_trx().unwrap();
txn_1.set_option(options::TransactionOption::ReportConflictingKeys)
        .expect("reporting conflict keys should succeed.");
let txn1_result = txn_1.commit().await;

[xis19]

Maybe ask it in foundationdb-rs repo. Currently we are not supporting Rust.