Call second coroutine function without blocking the first function

Question

I have coroutine function that return the result of a network call.

I want my function to return the result and call another function in a parallel way without waiting for the second function to finish.

This is my function

suspend fun getResult() : NetworkResponse<ApiResult, ApiError>?
{
    return withContext(Dispatchers.IO) {
        
        val localData : LocalData? = _localDataSource?.await()
        
        val result : NetworkResponse<ApiResult, ApiError>? = fetchFromNetwork(_localDataSource, localData).getOrNull()
        
        doAdditionalWork(localData, result)
        
        result
    }
}

And this is my second function

private suspend fun doAdditionalWork(localData : LocalData?, apiResponse : NetworkResponse<ApiResult, ApiError>?)
{
    delay(5000)
    //...
}

I just want the function 1 to return the result without waiting for the function 2. So how can i do it?