Help needed with pusher chatkit

Is there some one who can help me to implement the pusher chatkit in Node Red?
I found a pusher node but that does not support the chatkit...

What i need to do is send and receive messages to an app on an iphone
More info is on https://pusher.com/docs/chatkit/reference/server-node

Thanks for helping me out!

i found this, can this be used in or with node red?

Still no succes on trying to get this to work with node red
If anyone can help me it would be really appreciated!