Provide concrete example of multiplatform websocket

I have not been able to implement a multiplatform websocket with this package. I see no code examples to assist in the process. The only thing I can figure is that we're supposed to create a platform specific socket channel and pass it to WebSocketChannel.

It's basically gone like this so far:

1) Oh hey, I'm going to use `web_socket_channel` it's multiplatform!
2) What is a `StreamChannel`?
3) Okay, import `package:web_socket_channel/io.dart`...
4) Now I need a `WebSocket`?
5) Okay, import `dart:io`....
6) Wait, `WebSocket` is abstract? Okay, lets implement.... `48 methods`?!?!?!

Please give us some breadcrumbs.