$ jenkins-jobs --version
Jenkins Job Builder version: 3.10.0

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y
    foo:
      - a
      - b

- defaults:
    name: 'global'
    foo:
      - a
      - b

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y
    foo: !include: foo.yaml.inc

- a
- b

- defaults:
    name: 'global'
    include_name: foo

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y
    foo: !include: '{include_name}.yaml.inc'

- a
- b

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y
    foo: !include: foo.yaml.inc

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y
    foo: !include: foo.yaml.inc

[]

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y
    configuration: !include: configuration.yaml.inc
    foo: '{configuration[foo]}'

foo:
  - a
  - b

- defaults:
    name: 'global'
    foosrc:
      - a
      - b

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y
    foo: '{foosrc}'

- defaults:
    name: 'global'
    release: N

- job-template:
    name: '{foo}-{bar}'

- project:
    name: derp
    jobs:
      - '{foo}-{bar}'
    bar:
      - x
      - y
    foo: !j2-yaml: |
      {% if release == 'M' %}
      - a
      {% elif release == 'N' %}
      - a
      - b
      {% else %}
      []
      {% endif %}