How to Async Join String in OCaml - Code Snippet

(* Task: Async Join String
(* Language: OCaml

let async_join_string() =
    (* Implementation for Async Join String
    let result = ...; (* Initialize variable
    (* TODO: Implement core logic here
    (* Step 1: Prepare data
    (* Step 2: Process Async Join String
    print_endline("Done");
;;