An example of usage of js-noise library with waku can be seen here: https://examples.waku.org/noise-js/
The code for this example is available in the [js-waku-examples repository](https://github.com/waku-org/js-waku-examples/tree/master/examples/noise-js) repository
You can also refer to the test units available within this repository (`*.spec.ts`) for more examples on usage.