How to Async Flatten Array in Tcl - Code Snippet

# Task: Async Flatten Array
# Language: Tcl

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