dotnet new project - assigning a port number

#https #http

in the documentation for dotnet new... there is a setting for KestrelHttpsPort and kestrelHttpPort. When attempting to use those attributes in the cli it says:
_"--KestrelHttpsPort' is not a valid option" _
Am I reading something wrong in the documentation or am I calling it incorrectly?

The call is being made from Powershell:

"dotnet new $ProjectType -n $ProjectName --framework $Framework -lang $ProjectLanguage --kestrelHttpPort $KestrelHttpPort --KestrelHttpsPort $KestrelHttpsPort"

Is it possible that this used to be an argument but with .net 9 it is no longer?