BackOffVM.kt

 private fun getDogImages(): Flow<ResultWrapper> {
        return flow {
            emit(ResultWrapper.Loading(true))
            delay(3000)
            val randomNumber = (0..5).random()
            emit(ResultWrapper.Loading(false))
            if (randomNumber < 3) {
                throw IOException()
            }
            emit(ResultWrapper.Success(getList()))
        }
    }

    private fun getList(): List<String> {
        val list = listOf<String>(
            "https://images.dog.ceo/breeds/retriever-curly/n02099429_935.jpg",
           ....
            "https://images.dog.ceo/breeds/pekinese/n02086079_952.jpg"
        )
        return list
    }