Mechanism to detect Clikt's default input/output streams

[mataha]

I have an app that, by default, reads its input from stdin and writes its output to stdout. When it does that, I would like it to send a message to the user so that he doesn't sit mindlessly in front of a terminal, waiting for my app/gradle to finish initialization.

The way I used to solve this, while using option(...).inputStream().defaultStdin(), was absolutely disgusting and less than ideal:

private fun InputStream.isDefault(): Boolean =
    this::class.qualifiedName == "com.github.ajalt.clikt.parameters.types.UnclosableInputStream"

An alternative is to override every extension, create my own, identical stream proxy and compare it directly with an option (which is what I'm doing right now, but on a larger scale):

private fun InputStream.isDefault(): Boolean =
    this is UnclosableInputStream

Can such a mechanism be provided and exposed directly in Clikt?