How to Async Grayscale Image in Racket - Code Snippet

; Task: Async Grayscale Image
; Language: Racket

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