code: func Summary(err error, fileStr string) {
  	if err == nil {
  		fileStr = filepath.ToSlash(fileStr)
  		fmt.Printf("Successfully generated %s\n", fileStr)
  	} else {
  		fmt.Println(err)
  	}
  }
docs: // Summary generates a predictable report for use by test examples. If the
  // specified error is nil, the filename delimiters are normalized and the
  // filename printed to standard output with a success message. If the specified
  // error is not nil, its String() value is printed to standard output.