flow.kt

class MyUseCase @Inject constructor() {

    private val getUserFlow: Flow<Int> = flowOf<Int>(1, 2, 3, 4)
    private val getUserSessionFlow: Flow<Int> = flowOf<Int>(5, 6, 7, 8)

    operator fun invoke(): Flow<Unit> {
        return getUserFlow.zip(getUserSessionFlow) { user, session ->
            // Do transformation here
        }
    }
}

@HiltViewModel
class MyViewModel @Inject constructor(val myUseCase: MyUseCase) : ViewModel() {
    fun init() {
        viewModelScope.launch {
            myUseCase().collectLatest { 
                
            }
        }
    }
}