case mode.IsDir():
		fmt.Println("directory")
	case mode&fs.ModeSymlink != 0:
		fmt.Println("symbolic link")
	case mode&fs.ModeNamedPipe != 0:
		fmt.Println("named pipe")
	}
}

func ExampleErrNotExist() {
	filename := "a-nonexistent-file"
	if _, err := os.Stat(filename); errors.Is(err, fs.ErrNotExist) {
		fmt.Println("file does not exist")
	}
	// Output:
	// file does not exist
}