How to Async Calculate Factorial in Tcl - Code Snippet

# Task: Async Calculate Factorial
# Language: Tcl

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