jenkins-job-builder/tests/loader/fixtures/anchors_aliases.iyaml

- wrapper_defaults: &wrapper_defaults
    name: 'wrapper_defaults'
    wrappers:
      - timeout:
          timeout: 180
          fail: true
      - timestamps

- job_defaults: &job_defaults
    name: 'defaults'
    <<: *wrapper_defaults

- job-template:
    name: 'myjob'
    <<: *job_defaults