code: def __del__(self):
      self.corner_points.clear()
  
file_path: PaddleSeg/EISeg/eiseg/widget/bbox.py
imports: from qtpy import QtWidgets, QtGui, QtCore
  from qtpy.QtCore import Qt
label_desc: Use image node_id 12 for calling the BBoxAnnotation obj's underlying member method code with example usage: obj.__del__() without return types