...
nodes:
  - virtualMachineSlave:
      delegateLauncher:
        ssh:
          credentialsId: "jenkins-slave"
          host: "jenkins-slave.example.org"
          port: 22
          sshHostKeyVerificationStrategy: "knownHostsFileKeyVerificationStrategy"
      hypervisorDescription: "QEMU+ssh - 192.168.0.2"
      labelString: "docker"
      launcher: |-
        FAILED TO EXPORT
        hudson.plugins.libvirt.VirtualMachineSlave#launcher: io.jenkins.plugins.casc.ConfiguratorException: Can't read attribute 'waitingTimeSecs' from hudson.plugins.libvirt.VirtualMachineLauncher@3d5d735a
          at io.jenkins.plugins.casc.Attribute._getValue(Attribute.java:461)
          at io.jenkins.plugins.casc.Attribute.getValue(Attribute.java:235)
          at io.jenkins.plugins.casc.impl.configurators.DataBoundConfigurator.describe(DataBoundConfigurator.java:289)
          at io.jenkins.plugins.casc.Attribute._describe(Attribute.java:328)
          at io.jenkins.plugins.casc.Attribute.describe(Attribute.java:264)
          at io.jenkins.plugins.casc.impl.configurators.DataBoundConfigurator.describe(DataBoundConfigurator.java:316)
          at io.jenkins.plugins.casc.impl.configurators.HeteroDescribableConfigurator.lambda$convertToNode$de0cd4f8$1(HeteroDescribableConfigurator.java:282)
          at io.vavr.CheckedFunction0.lambda$unchecked$52349c75$1(CheckedFunction0.java:247)
          at io.jenkins.plugins.casc.impl.configurators.HeteroDescribableConfigurator.convertToNode(HeteroDescribableConfigurator.java:282)
          at io.jenkins.plugins.casc.impl.configurators.HeteroDescribableConfigurator.lambda$describe$5(HeteroDescribableConfigurator.java:107)
          at io.vavr.control.Option.map(Option.java:392)
          at io.jenkins.plugins.casc.impl.configurators.HeteroDescribableConfigurator.describe(HeteroDescribableConfigurator.java:107)
          at io.jenkins.plugins.casc.impl.configurators.HeteroDescribableConfigurator.describe(HeteroDescribableConfigurator.java:55)
          at io.jenkins.plugins.casc.Attribute._describe(Attribute.java:328)
          at io.jenkins.plugins.casc.Attribute.describe(Attribute.java:257)
          at io.jenkins.plugins.casc.Configurator.describe(Configurator.java:183)
      mode: EXCLUSIVE
      name: "jenkins-slave-libvirt"
      numExecutors: 2
      rebootAfterRun: false
      remoteFS: "/home/jenkins"
      retentionStrategy:
        demand:
          idleDelay: 5
          inDemandDelay: 5
      shutdownMethod: "shutdown"
      startupTimesToRetryOnFailure: 0
      startupWaitingPeriodSeconds: 10
      virtualMachineName: "jenkins-slave"
...