Hi Everyone, I've been working on implementing a Google Sheets IO source for my pipeline. I've tried this example <https://beam.apache.org/documentation/programming-guide/#splittable-dofns> along with this blog <https://beam.apache.org/blog/splittable-do-fn/>. I have an example here on colab <https://colab.research.google.com/drive/1Fbq2jDqGcfJv7639tb_7-FkbRkQPCPxg?usp=sharing>. It returns "AttributeError: 'PBegin' object has no attribute 'windowing' "
Please, what could I be doing wrong?
