code: func (p *Pod) readIntFromFile(path string) (i int, err error) {
  	b, err := p.readFile(path)
  	if err != nil {
  		return
  	}
  	_, err = fmt.Sscanf(string(b), "%d", &i)
  	return
  }
docs: // readIntFromFile reads an int from a file in a pod's directory.