`assertIs<LNChannel<X>>` doesn't work as expected

[robbiehanson]

The call only ensures that the value is of type LNChannel<Any>

According to the docs for assertIs:

Note that due to type erasure the type check may be partial (e.g. assertIs<List<String>>(value) only checks for the class being List and not the type of its elements because it's erased).

There was a related discussion here