code: def __init__(self) -> None:
      super().__init__()
      self.sent_start = "<extra_id_0>"
      self.sent_end = "<extra_id_1>"
      self.record_start = "<extra_id_0>"
      self.record_end = "<extra_id_1>"
      self.span_start = "<extra_id_0>"
      self.span_end = "<extra_id_1>"
      self.text_start = "<extra_id_2>"
      self.source_span_start = "<extra_id_3>"
      self.source_span_end = "<extra_id_4>"
      self.target_span_start = "<extra_id_5>"
      self.null_span = "<extra_id_6>"
      self.null_label = "<extra_id_7>"
  
label_desc: Use image node_id 1 to create a new BaseStructureMarker object from inherited base classes: StructureMarker with example: obj = BaseStructureMarker()