It's possible that I'm implementing this wrong (very possible), but have a question about typealias. For ios multiplatform I have interop class definitions that are close but not exact enough to work as actual typealias definitions. I got really excited about using extension functions, but hopes dashed when those don't seem to be included in the definition for actual classes. Is this supported, and if not, thoughts? Right now I'm creating delegate classes. Works, but verbose.