Example coroutine with Flow

CoroutineWithFlow.kt

abstract class BaseFlowUseCase<out Type, in Params> {

    abstract suspend fun execute(param: Params): Flow<Type>
}

 override suspend fun getNumberInvites(): Flow<Int> {
        return local.getNumberInvites()
    }

override suspend fun getNumberInvites(): Flow<Int> {
        return sharedPreferences.observeKey(INVITATIONS_KEY, 0)
    }

private fun subScribeBadgeListeners() {
        viewModelScope.launch {
            getNumberInvitesUseCase.execute(GetNumberInvitesUseCase.Param()).collect {
                _invites.value = it
            }
        }

        viewModelScope.launch {
            getNumberMessagesUseCase.execute(GetNumberMessagesUseCase.Param()).collect {
                _messages.value = it
            }
        }
    }