docs: def setup_Q2Q(self, path,
                    q2qPortnum=q2q.port,
                    inboundTCPPortnum=q2q.port+1,
                    publicIP=None
                    ):
          """Set up a Q2Q service.
          """
          store = DirectoryCertificateAndUserStore(path)
          # store.addPrivateCertificate("kazekage")
          # store.addUser("kazekage", "username", "password1234")
  
          self.attach(q2q.Q2QService(
                  protocolFactoryFactory=IdentityAdminFactory(store).examineRequest,
                  certificateStorage=store,
                  portal=Portal(store, checkers=[store]),
                  q2qPortnum=q2qPortnum,
                  inboundTCPPortnum=inboundTCPPortnum,
                  publicIP=publicIP,
                  ))