WatchlistRenamedEventArgs

using cAlgo.API;

namespace cAlgo
{
    // This sample shows how to use WatchlistRenamedEventArgs
    public partial class WatchlistRenamedEventArgsSample : Indicator
    {
        protected override void Initialize()
        {
            Watchlists.WatchlistRenamed += OnWatchlistRenamed;
        }

        private void OnWatchlistRenamed(WatchlistRenamedEventArgs obj)
        {
            Print("Watchlist renamed to {0}", obj.Watchlist.Name);
        }

        public override void Calculate(int index)
        {
        }
    }
}

import clr
clr.AddReference("cAlgo.API")

from cAlgo.API import *

class Test():
    def initialize(self):
        api.Watchlists.WatchlistRenamed += self.on_watchlist_renamed

    def on_watchlist_renamed(self, args):
        print(f"Watchlist renamed to {args.Watchlist.Name}")

{
  "AccessRights": "None",
  "TimeZone": "UTC",
  "IsOverlay": true
}