code: func (n *Network) OrdererAdminSession(o *Orderer, p *Peer, command Command) (*gexec.Session, error) {
  	cmd := n.peerCommand(
  		command,
  		"CORE_PEER_LOCALMSPID=OrdererMSP",
  		fmt.Sprintf("FABRIC_CFG_PATH=%s", n.PeerDir(p)),
  		fmt.Sprintf("CORE_PEER_MSPCONFIGPATH=%s", n.OrdererUserMSPDir(o, "Admin")),
  	)
  	return n.StartSession(cmd, command.SessionName())
  }
docs: // OrdererAdminSession execute a gexec.Session as an orderer node admin user. This is used primarily
  // to generate orderer configuration updates