How to Async Transaction Rollback in Nim - Code Snippet

# Task: Async Transaction Rollback
# Language: Nim

proc async_transaction_rollback() =
    # Implementation for Async Transaction Rollback
    var result = ...; # Initialize variable
    # TODO: Implement core logic here
    # Step 1: Prepare data
    # Step 2: Process Async Transaction Rollback
    echo("Done");