FetchDetailsViewModel.kt

    fun fetchDogBreedList(): LiveData<List<String>> {
        val dogBreedLiveData = fetchDetailsRepo.fetchBreedList()
        return Transformations.map(dogBreedLiveData) {
            when (it.status) {
                Resource.Status.SUCCESS -> {
                    // Returns a list of 'name' string
                    it.data?.map { it.name }
                }
                Resource.Status.ERROR -> {
                    // Handle Error
                    null
                }
            }
        }
    }