Any ways to get access to Apple Map's indoor navigation within airports

I'm currently playing with Apple Map's MapKit for SwiftUI, aiming to make a tool that helps me navigate inside the airport as I find out that Apple Map in my iPhone can direct me within the airport from gate to gate. I want to integrate this function into my SwiftUI application, but I believe that MapKit only gives directions between places to places, like from my home to the airport, but not directions travelling indoor in the airport. Are there any ways for me to integrate the Apple Map that supports airport's indoor navigation into my App? Thanks!