AddRepoIfNotExist will add the repo if the repo doesn't exist.

DeleteRelease will delete the given release.

ListReleases returns a list of all the releases for the given namespaces.

SetNamespace is used to set the namespace of the kubernetes client used in helm action.Configuration.

UpdateHelmRepos will update all the repo.

UpgradeRelease upgrades a existing release or creates it if not exists.