The F5-WS-REST and F5-CA-REST certificate store types do not exist

[jducros-keyfactor]

Dear team,
When trying to generate a CSV template for the F5-WS-REST an F5-CA-REST certificate stores, i get an "does not exist" error :

kfutil stores import generate-template --store-type-name F5-CA-REST --outpath F5-CA-REST.csv
Error: Certificate Store Type with StoreType short name 'F5-CA-REST' does not exist
panic: error retrieving store type

kfutil stores import generate-template --store-type-name F5-WS-REST --outpath F5-WS-REST.csv
Error: Certificate Store Type with StoreType short name 'F5-WS-REST' does not exist
panic: error retrieving store type

Version of kfutil = 1.6.0, installed from the install.ps1 script

I am doing something incorrect?
Thanks in advance
Jerome