https://github.com/ngReact/ngReact maybe look at the source to check how they did it. You can pass callbacks so this is how you can establish the bidirectional communication beyond that I have no further knowledge (never applied it just read up on it)

I'd love to know more on this. I'd love to know the use case as React and Angular do pretty much the same thing - so I'm wondering if the question should be more along the lines of "Do you really need to do this?".