How to Async String Starts With in Tcl - Code Snippet

# Task: Async String Starts With
# Language: Tcl

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