code: func (n *Network) OrdererLocalCryptoDir(o *Orderer, cryptoType string) string {
  	org := n.Organization(o.Organization)
  	Expect(org).NotTo(BeNil())
  
  	return filepath.Join(
  		n.RootDir,
  		"crypto",
  		"ordererOrganizations",
  		org.Domain,
  		"orderers",
  		fmt.Sprintf("%s.%s", o.Name, org.Domain),
  		cryptoType,
  	)
  }
docs: // OrdererLocalCryptoDir returns the path to the local crypto directory for the
  // Orderer.