Rendezvous Client package provides two abstractions: RendezvousClient and RendezvousTunnel.
RendezvousClient facilitates secure connection between a browser (or mobile if javascript code is run, e.g. with React Native) and the Rendezvous service.
RendezvousTunnel creates a secure connection between two clients (e.g. browser to browser or browser to mobile if e.g. React Native is used) using a Rendezvous service on an Identity Box with the given url.