What to include in import settings json file when using importassets commandlet

I have been able to successfully import assets using the commandlet, but I have been desperately trying to specify import settings while using the ImportAsets commandlet.

From https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Editor/UnrealEd/Private/Commandlets/ImportAssetsCommandlet.cpp
I understand that I should be creating a JSON file, but I cannot find what the expected contents of that file are.

Really all I want is to be able to specify that bCombineMeshes should be true, and bRemoveDegenerates should be true.

For those that find this question and would like the answer, I’ve included an example of contents of my .json file below.

{“ImportGroups”:[{“GroupName” : “Test”,“Filenames” : [Path\To\Assets],“DestinationPath” : “/Game/Test”,“bReplaceExisting” : “true”,“bSkipReadOnly” : “true”,“ImportSettings”:{“StaticMeshImportData”:{“bRemoveDegenerates”:“false”}}}]}