code: func (n *Network) peerLocalCryptoDir(p *Peer, cryptoType string) string {
  	org := n.Organization(p.Organization)
  	Expect(org).NotTo(BeNil())
  
  	return filepath.Join(
  		n.RootDir,
  		"crypto",
  		"peerOrganizations",
  		org.Domain,
  		"peers",
  		fmt.Sprintf("%s.%s", p.Name, org.Domain),
  		cryptoType,
  	)
  }
docs: // peerLocalCryptoDir returns the path to the local crypto directory for the peer.