I have an extension generic function, declared as ...

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[kko]

I have an extension generic function, declared as such:

inline fun <reified TCallback, TParent> TParent.initCallback()
        where TParent : Fragment, TParent : IHasCallback<TCallback> { ... }

I then want to call it inside a class that implements IHasCallback<Something> and inherits Fragment. I even get code completion, but it won't compile saying

Error:(40, 14) Unresolved reference. None of the following candidates is applicable because of receiver type mismatch:

public inline fun <reified TCallback, TParent : Fragment> SearchSaveDialogFragment.initCallback(): Unit where TParent :

IHasCallback<SearchSaveDialogFragmentCallbacks> defined in my.app.name