I have this index.html :

```
<html>
<head>
  <title>Sample App</title>
  <link href="./src/css/bootstrap.min.css" rel="stylesheet" />
  <link href="./src/css/bootstrap.dashboard.css" rel="stylesheet">
</head>
<body>
  <div id='root'>
  </div>
  <script type="text/javascript" src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
  <script type="text/javascript" src="./src/js/jquery.signalR-2.2.0.min.js"></script>
  <script src="http://localhost:26665/signalr/hubs"></script>
  <script type="text/javascript" src="/static/bundle.js"></script>

  <script type="text/javascript">
    $(function() {
        var myHub = $.connection.signalRTwitchBotParserHub;

        myHub.client.OnNewMessage = function (data) {
              // Call AppActions.dispatchMessage(message);
        };

        $.connection.hub.url = "http://localhost:26665/signalr";
        $.connection.hub.start()
   });
  </script>
</body>

```

How can I call a React-created class from there? I would like to replace the `// Call AppActions.dispatchMessage(message);`