only implement async so strip the `_async`

[Morriz]

its so typical for python programmers to build both sync and async, but only async is enough!

[zachary62]

You suggest remove the Node and keep async node the default?

[Morriz]

The whole world works with async (see Go, javascript etc) because we've seen that blocking threads are not desirable. But maybe my understanding of the python async way is incorrect.

My assumption is: if we CAN use async, then why not use it consistently everywhere? Drop the old sync thinking.