create_connection, send and recv instead of simply open / avoid do statements

Hello,

Sorry I'm new to websockets.
I want to convert the following Python code to Julia

```julia
from websocket import create_connection
import orjson

ws = create_connection("wss://ws.kraken.com/")
message = {"event":"subscribe", "subscription":{"name":"trade"}, "pair":["XBT/USDT","XBT/USD"]}

ws.send(orjson.dumps(message))

while True:
message = ws.recv()
message = orjson.loads(message)
print(message)
if isinstance(message, list):
print(message[2], message[3])
```

I did using doc

```julia
using WebSockets
import JSON

const url = "wss://ws.kraken.com/"

WebSockets.open(url) do ws_client
# msg = "{\"event\":\"subscribe\", \"subscription\":{\"name\":\"trade\"}, \"pair\":[\"XBT/USD\",\"XRP/USD\"]}"

msg = Dict(
"event" => "subscribe",
"subscription" => Dict("name" => "trade"),
"pair" => ["XBT/USDT", "XBT/USD"]
)
msg = JSON.json(msg)

writeguarded(ws_client, msg)

while (true)
data, success = readguarded(ws_client)
if success
println(stderr, ws_client, " received:", String(data))
end

end
end;
```

but I don't like Julia `do` statements.

Moreover I would prefer to have separate `create_connection`, `send` and `recv` call like in the Python example but in the Julia example `open` takes handle function as parameter which is a mix of all this.

How can I achieve that? (ie having a Julia code nearer than the Python code)

Kind regards