How to Async Flatten Array in Perl - Code Snippet

# Task: Async Flatten Array
# Language: Perl

sub async_flatten_array() {
    # Implementation for Async Flatten Array
    my $ result = ...; # Initialize variable
    # TODO: Implement core logic here
    # Step 1: Prepare data
    # Step 2: Process Async Flatten Array
    print("Done");
}