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: walk.go
    path of file: ./repos/helm/internal/sympath
    
    the code of the file until where you have to start completion: /*
Copyright (c) for portions of walk.go are held by The Go Authors, 2009 and are
provided under the BSD license.

https://github.com/
    
func Walk(root string, walkFn filepath.WalkFunc) error {
	info, err := os.Lstat(root)
	if err != nil {
		err = walkFn(root, nil, err)
	} else {
		err = symwalk(root, info, walkFn)
	}
	if err == filepath.SkipDir {
		return nil
	}
	return err
}