Prevent ImportAssets adding assets to ContentBrowser

I am importing textures from a png file using the following API

FAssetToolsModule& AssetToolsModule = FModuleManager::GetModuleChecked(“AssetTools”);

TArray TextureFileNames;
TextureFileNames.Add(TexDir);
TArray<UObject*> ImportedSheets = AssetToolsModule.Get().ImportAssets(TextureFileNames, FString(“/Engine/RealBand”),
NewObject(UTextureFactory::StaticClass()),false,nullptr,false);

I add these assets to a collection as I want them to see in the AssetViewer

But I do not want to add them into the content Browser …is that possible ?