code: func (m *LocalReleaseModule) Delete(rel *release.Release, req *services.UninstallReleaseRequest, env *environment.Environment) (kept string, errs []error) {
  	vs, err := GetVersionSet(m.clientset.Discovery())
  	if err != nil {
  		return rel.Manifest, []error{fmt.Errorf("Could not get apiVersions from Kubernetes: %v", err)}
  	}
  	return DeleteRelease(rel, vs, env.KubeClient)
  }
docs: // Delete deletes the release and returns manifests that were kept in the deletion process