signtool /d equivalent in Powershell?

I am signing .MSI files using Powershell Set-AuthenticodeSignature cmdlet. My goal is to use this cmdlet to replace signtool. However, I am not seeing a parameter that I can specify a description to the signed content, just like the /d option in signtool. Is there a way to specify this using pure Powershell? If not, is there any other alternative that can replace signtool? For some reason, we found that signtool is less stable than Set-AuthenticodeSignature and we would like to ditch it.