- doc: | 
    Test to verify collection flatten collection operation in the context of a workflow.
  job: {}
  outputs:
    out:
      class: Collection
      collection_type: list
      elements:
        'oe1-ie1':
          asserts:
          - that: has_text
            text: "A"
        'oe1-ie2':
          asserts:
          - that: has_text
            text: "B"
        'oe2-ie1':
          asserts:
          - that: has_text
            text: "C"