To Create ClusterLogForwarder custom resource using sample mentioned in DOC, it fails with below error:

The ClusterLogForwarder "instance" is invalid: spec.pipelines.labels.secure: Invalid value: "boolean": spec.pipelines.labels.secure in body must be of type string: "boolean"

Document:
https://docs.openshift.com/container-platform/4.6/logging/cluster-logging-external.html#cluster-logging-collector-log-forwarding-about_cluster-logging-external

As the error stated that the value of "secure" must be string not boolean. we tried with below setting:

secure: "true"

and this worked

Question:
But Is this correct as it's not mentioned like this in documents?