code: func Load(filename, password string) (tls.Certificate, error) {
  	p12, err := ioutil.ReadFile(filename)
  	if err != nil {
  		return tls.Certificate{}, fmt.Errorf("Unable to load %s: %v", filename, err)
  	}
  	return Decode(p12, password)
  }
docs: // Load a .p12 certificate from disk.