How do I call uasset that is loaded from memory in Pak?

How do I call uasset that is loaded from memory in Pak? MountPak Successful and SynchronousLoad Successful ,But I don’t know how to call uasset that is loaded from memory in Pak.Please help me. Thank you very much.

Code:`

             FString SaveContentDir = FPaths::ProjectContentDir()+ TEXT("Paks/newout.pak");
	IPlatformFile& PlatformFile = FPlatformFileManager::Get().GetPlatformFile();
	FPakPlatformFile* PakPlatformFile = new FPakPlatformFile();
	PakPlatformFile->Initialize(&PlatformFile, TEXT(""));
	FPlatformFileManager::Get().SetPlatformFile(*PakPlatformFile);
	FPakFile PakFile(&PlatformFile, *SaveContentDir, false);
    FString MountPoint("../../../codetest04/Topak/");
	PakFile.SetMountPoint(*MountPoint);
	if (PakPlatformFile->Mount(*SaveContentDir, 0, *MountPoint))
	{
		GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Red, TEXT("OnMountPak.Execute Successful.%s" + SaveContentDir));
		UE_LOG(YourLog, Warning, TEXT("Mount Success"));
		TArray<FString> AssetsToLoad;
		TArray<FString> FileList;
		PakFile.FindFilesAtPath(FileList, *PakFile.GetMountPoint(), true, false, true);
		FStreamableManager StreamableManager;
		FString AssetName = FileList[10];
		FString AssetShortName = FPackageName::GetShortName(AssetName);
		FString LeftStr;
		FString RightStr;
		AssetShortName.Split(TEXT("."), &LeftStr, &RightStr);
		AssetName = TEXT("/Game/Topak/") + LeftStr + TEXT(".") + LeftStr;	
		FStringAssetReference reference = AssetName;
		UObject* LoadObject = StreamableManager.SynchronousLoad(reference);
					
		if (LoadObject != nullptr)
		{
											
				UStaticMesh* Obj = Cast<UStaticMesh>(LoadObject);
				if (Obj!= nullptr)
				{						
					
					
					UE_LOG(YourLog, Warning, TEXT("SynchronousLoad success !!!"))
						GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Red, TEXT("SynchronousLoad success !!!" ));
				}
				else
				{
					UE_LOG(YourLog, Warning, TEXT("SynchronousLoad failed !!!"))
						GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Red, TEXT("SynchronousLoad failed !!!"));
				}
                    }`