How to Async Subtract Dates in Tcl - Code Snippet

# Task: Async Subtract Dates
# Language: Tcl

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