Templates/progress_notification.json

{
  "jsonrpc": "2.0",
  "method": "notifications/progress",
  "params": {
    "progressToken": "powershell-command-execution",
    "progress": {
      "kind": "report",
      "title": "PowerShell Command Execution",
      "message": "Command is still running...",
      "percentage": null
    }
  }
}