kubernetes/staging/src/k8s.io/cli-runtime/pkg/resource/client.go

// TODO require negotiatedSerializer.  leaving it optional lets us plumb current behavior and deal with the difference after major plumbing is complete
func (clientConfigFn ClientConfigFunc) clientForGroupVersion(gv schema.GroupVersion, negotiatedSerializer runtime.NegotiatedSerializer) (RESTClient, error) { … }

func (clientConfigFn ClientConfigFunc) unstructuredClientForGroupVersion(gv schema.GroupVersion) (RESTClient, error) { … }

func (clientConfigFn ClientConfigFunc) withStdinUnavailable(stdinUnavailable bool) ClientConfigFunc { … }