code: func (n *Network) PeerOrgMSPDir(org *Organization) string {
  	return filepath.Join(
  		n.RootDir,
  		"crypto",
  		"peerOrganizations",
  		org.Domain,
  		"msp",
  	)
  }
docs: // PeerOrgMSPDir returns the path to the MSP directory of the Peer organization.