# Example with all variables modifiable

    leader:                       # A leadership
      - leader: value1            # A leader
        follower1: val11          # A follower
        follower2: val21          # An other follower
      - leader: value2            # A leader
        follower1: val11          # A follower
        follower2: val21          # An other follower
    calculate:                    # A calculated variable
      - val11
      - val11