return flow {
    var isEmpty = true

    emitAll(
        abTestRepository.getExperiments(
            appName = appName,
            userIdentifier = userIdentifier,
            experiments = experiments,
            mode = mode
        )
            .onEach { isEmpty = false }
            .onCompletion {
                if (isEmpty) {
                    val defaultData = RallyAbTest.data.experiments.map {
                        ExperimentGroup(
                            name = it.name,
                            value = it.defaultGroup
                        )
                    }.freeze()

                    emit(defaultData)
                }
            }
    )
}