Xamarin how to get bytes from photo to send to server?

Question

Android

Hello, tell me how to get bytes from the intent of the picture from the camera and from the gallery to send to the server.

Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
            StartActivityForResult(intent, 0);

I used this code for the camera

protected void onActivityResult(int requestCode, int resultCode, Intent data)
        {
         data.GetByteArrayExtra(); // не работает, требует в параметры какую-то строку name
        }