How to perform 'Async Append to File' in Scheme.
; Task: Async Append to File
; Language: Scheme
define async_append_to_file() (
; Implementation for Async Append to File
define result = ...; ; Initialize variable
; TODO: Implement core logic here
; Step 1: Prepare data
; Step 2: Process Async Append to File
display("Done");
)