func (c APIClient) ExtractWriter(objects bool, w io.Writer) error {
	writer := pbutil.NewWriter(w)
	return c.Extract(objects, func(op *admin.Op) error {
		_, err := writer.Write(op)
		return err
	})
}
func (c APIClient) ExtractWriter(objects bool, w io.Writer) error {
	writer := pbutil.NewWriter(w)
	return c.Extract(objects, func(op *admin.Op) error {
		_, err := writer.Write(op)
		return err
	})
}
func ( c APIClient ) ExtractWriter ( objects bool , w io . Writer ) error { writer := pbutil . NewWriter ( w ) return c . Extract ( objects , func ( op * admin . Op ) error { _ , err := writer . Write ( op ) return err } ) }
// ExtractWriter extracts all cluster state and marshals it to w.
ExtractWriter extracts all cluster state and marshals it to w .