JCasC Plugin Kubernetes property serverCertificate

[scivray47]

Hello,
In this example https://github.com/jenkinsci/configuration-as-code-plugin/blob/master/demos/kubernetes/README.md there is a property serverCertificate.
But it seems this property does not exist here

helm-charts/charts/jenkins/templates/_helpers.tpl

Line 198 in 68e79e8

serverUrl: "{{ .Values.kubernetesURL }}"

Is there a way to specify it without altering the file _helpers.tpl ?

Thank you