def initialize(id, repeat_count, header_segment_uses, loop_defs, trailer_segment_uses, parent)
        @id, @repeat_count, @header_segment_uses, @loop_defs, @trailer_segment_uses, @parent =
          id, repeat_count, header_segment_uses, loop_defs, trailer_segment_uses, parent

        # Delay re-parenting until the entire definition tree has a root