foo:
    class: My::RefTest
    args:
        got_ref: { $ref: bar }
bar:
    class: My::ArgsTest
    args:
        text: "Hello, World"
buzz:
    class: My::ArgsTest
    args:
        - [ 'one', 'two', 'three' ]

fizz:
    class: My::ArgsTest
    args:
        - { one: 'two' }