NexusDeepLinkHandler typedef
NexusDeepLinkHandler =
FutureOr<bool> Function(NexusDeepLink link)
Decide what to do with a Nexus deep link. Return true when the app handled
the navigation itself; false lets the SDK route to NexusDeepLink.path.
Implementation
typedef NexusDeepLinkHandler = FutureOr<bool> Function(NexusDeepLink link);