generates a session-unique token that is exposed both to Python <code>webview.token</code> and DOM <code>window.pywebview.token</code>. See <a href="https://github.com/r0x0r/pywebview/tree/master/examples/flask_app" target="_blank" rel="noopener noreferrer">Flask app<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-4