You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: runtimeclass.go
    path of file: ./repos/sealer/vendor/k8s.io/client-go/applyconfigurations/node/v1
    
    the code of the file until where you have to start completion: /*
Copyright The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a cop
    
func extractRuntimeClass(runtimeClass *apinodev1.RuntimeClass, fieldManager string, subresource string) (*RuntimeClassApplyConfiguration, error) {
	b := &RuntimeClassApplyConfiguration{}
	err := managedfields.ExtractInto(runtimeClass, internal.Parser().Type("io.k8s.api.node.v1.RuntimeClass"), fieldManager, b, subresource)
	if err != nil {
		return nil, err
	}
	b.WithName(runtimeClass.Name)

	b.WithKind("RuntimeClass")
	b.WithAPIVersion("node.k8s.io/v1")
	return b, nil
}