SetupVegaServer

Sends a Vega-Lite specification to a local WebSocket server for visualization.

Before calling this method, you must start the WebSocket server by running the following command in a separate terminal:

cs launch io.github.quafadas:dedav4s_3:0.10.0 -M viz.websockets.serve -- 8085

After the server is running, visualizations will be displayed at http://localhost:8085 and are updated via a websocket message every time the plot method is called, with eith the websocket or publishToPort plot target given in scope.