How to install helm chart in decouple mode?

I can see that on chart version basis role traditional is set

{{- $isBeta := (semverCompare ">=2.99.0-0" .Values.apisix.image.tag) }}

{{- if $isBeta }}
deployment:
  role: traditional
  role_traditional:
    config_provider: etcd

How to install helm chart in decouple mode?