code: func (c *configMaps) Update(configMap *api.ConfigMap) (result *api.ConfigMap, err error) {
  	result = &api.ConfigMap{}
  	err = c.client.Put().
  		Namespace(c.ns).
  		Resource("configmaps").
  		Name(configMap.Name).
  		Body(configMap).
  		Do().
  		Into(result)
  	return
  }
docs: // Update takes the representation of a configMap and updates it. Returns the server's representation of the configMap, and an error, if there is any.