public static Function<? super HttpService, CoroutineContextService> newDecorator(
            CoroutineContextProvider provider) {
        return delegate -> new CoroutineContextService(delegate, provider);
    }
Returns a new {@link HttpService} decorator that injects into annotated services the coroutine context
provided by the specified {@code provider}.
kotlin/src/main/java/com/linecorp/armeria/server/kotlin/CoroutineContextService.java