let _ =
        let open Ozulip in
        let conf = init "www.domain.com" "[email protected]" "key" in
        let dest = Messages.stream_name "general" "welcom topic" in
        Messages.send_message conf dest "New message from `ozulip`" 

    let _ =
        let open Ozulip in
        let conf = init "www.domain.com" "[email protected]" "key" in
        let%lwt uri = Messages.upload_file conf "/path/to/your/file" in
        let dest = Messages.stream_name "general" "welcom topic" in
        let msg = Format.sprintf "Check out the [this file](%s)!" uri in 
        Messages.send_message conf dest msg

    let _ =
        let open Ozulip in
        let conf = init "www.domain.com" "[email protected]" "key" in
        let dest = Messages.stream_name "general" "welcom topic" in
        let%lwt mess_id =  Messages.send_message conf dest "New message from `ozulip`" in
        Messages.edit_message ~content:"New content of my message" mess_id

    let _ =
        let open Ozulip in
        let conf = init "www.domain.com" "[email protected]" "key" in
        let dest = Messages.stream_name "general" "welcom topic" in
        let%lwt mess_id =  Messages.send_message conf dest "New message from `ozulip`" in
        Messages.delete_message mess_id