code: func parseRemoteSubsystem(ctx context.Context, subsytemName string, serverContext *srv.ServerContext) *remoteSubsystem {
  	return &remoteSubsystem{
  		log: log.WithFields(log.Fields{
  			trace.Component: teleport.ComponentRemoteSubsystem,
  			trace.ComponentFields: map[string]string{
  				"name": subsytemName,
  			},
  		}),
  		serverContext: serverContext,
  		subsytemName:  subsytemName,
  		ctx:           ctx,
  		errorCh:       make(chan error, 3),
  	}
  }
docs: // parseRemoteSubsystem returns *remoteSubsystem which can be used to run a subsystem on a remote node.