How to Async DNS Lookup in Racket - Code Snippet

; Task: Async DNS Lookup
; Language: Racket

define async_dns_lookup() (
    ; Implementation for Async DNS Lookup
    define result = ...; ; Initialize variable
    ; TODO: Implement core logic here
    ; Step 1: Prepare data
    ; Step 2: Process Async DNS Lookup
    displayln("Done");
)