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