this plugin not support for private repositories?

[fanrongfei]

I want Helm to use Chart in the private repository, but I can't find a place to set it ，Source code in the add repo, only have repo name and repo server url，juset like it “helm repo add --username admin --password 123456 myrepo http://10.10.10.10:8090/chartrepo/helm --insecure-skip-tls-verify”