how to use getSeekableBlob in vue3

[mortalrru]

function stopRecordingCallback() {
    video.muted = false;
    video.volume = 1;

    video.src = video.srcObject = null;

    getSeekableBlob(recorder.getBlob(), function(seekableBlob) {
        video.src = URL.createObjectURL(seekableBlob);

        recorder.stream.stop();
        recorder.destroy();
        recorder = null;

        document.getElementById('btn-start-recording').disabled = false;

        invokeSaveAsDialog(seekableBlob, 'seekable-recordrtc.webm');
    });
}