PublishedApi
@Target(allowedTargets = [AnnotationTarget.CLASS, AnnotationTarget.CONSTRUCTOR, AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY] )
When applied to a class or a member with internal visibility allows using it from public inline functions and makes it effectively public.
Public inline functions cannot use non-public API, since if they are inlined, those non-public API references would violate access restrictions at a call site (see restrictions for public API inline functions).
To overcome this restriction an internal declaration can be annotated with the @PublishedApi annotation:
this allows calling that declaration from public inline functions;
the declaration becomes effectively public, and this should be considered with respect to binary compatibility maintaining.