How to Async Count Vowels in Nim - Code Snippet

# Task: Async Count Vowels
# Language: Nim

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