Reflection: Access the instance that a bound callable (property) is bound to?

Hi all,
Is there a way in Kotlin reflection to access the instance a bound callable (or bound property getter/setter) is bound to via the callable reference? I understand that there is something like Callable.instanceParameter and Callable.receiverParameter, but these point to the parameters only, not to the actual arguments, right?
For a bound callable, the receiver has to be somewhere “in there”, so it should be possible to have something like Callable.boundReceiver or similar…