* Returns services required, be it using {@link org.gradle.api.Task#usesService} or
     * by annotating a property as {@link org.gradle.api.services.ServiceReference}.
     */
    Set<Provider<? extends BuildService<?>>> searchServices();

    Set<Provider<? extends BuildService<?>>> getElements();

    /**
     * Returns whether a service is required, be it using {@link org.gradle.api.Task#usesService} or

    }

    @Override
    public Set<Provider<? extends BuildService<?>>> getElements() {
        return getElements(false);
    }

    @Override
    public Set<Provider<? extends BuildService<?>>> searchServices() {
        return getElements(true);
    }

    private Set<Provider<? extends BuildService<?>>> getElements(boolean search) {

            task.doNotTrackState(reasonNotToTrackState)
        }
    }

    private
    suspend fun WriteContext.writeRequiredServices(task: TaskInternal) {
        writeCollection(task.requiredServices.searchServices())
    }

    private
    suspend fun ReadContext.readRequiredServices(task: TaskInternal) {
        readCollection {
            task.usesService(readNonNull())
        }
    }

    private