listOfPlannedAnalyses

listOfPlannedAnalyses:
  listItems:
  - name: Table 2. Baseline Demographic and Clinical Characteristics, Safety Population,
      Trial CDISCPILOT01
    level: 1
    order: 1
    outputId: O_T2
    sublist:
      listItems:
      - name: Summary of Subjects by Treatment
        level: 2
        order: 1
        analysisId: A_SAF_SUM_USUBJID_TRT
      - name: Sex
        level: 2
        order: 2
        sublist:
          listItems:
          - name: Summary of Subjects by Treatment
            level: 3
            order: 1
            analysisId: A_SAF_SUM_USUBJID_TRT_SEX
      - name: Age
        level: 2
        order: 3
        sublist:
          listItems:
          - name: Summary of Age by Treatment
            level: 3
            order: 1
            analysisId: A_SAF_SUM_AGE_TRT
      - name: Age groups
        level: 2
        order: 4
        sublist:
          listItems:
          - name: Summary of Subjects by Treatment
            level: 3
            order: 1
            analysisId: A_SAF_SUM_USUBJID_TRT_AGEGRP

The listOfPlannedAnalyses is an instance of the NestedList class and, in total, there are 5 instances of the NestedList class shown in this example: 1 with list items having level = 1, 1 with list items having level = 2, and 3 with list items having level = 3. If each instance of the NestedList class is represented as a table of list items, the YAML example could be represented as: