code: func (c *FakeRuntimeClasses) Update(runtimeClass *v1beta1.RuntimeClass) (result *v1beta1.RuntimeClass, err error) {
  	obj, err := c.Fake.
  		Invokes(testing.NewRootUpdateAction(runtimeclassesResource, runtimeClass), &v1beta1.RuntimeClass{})
  	if obj == nil {
  		return nil, err
  	}
  	return obj.(*v1beta1.RuntimeClass), err
  }
docs: // Update takes the representation of a runtimeClass and updates it. Returns the server's representation of the runtimeClass, and an error, if there is any.