code: def hoverEnterEvent(self, ev):
      self.boundingPolygon(True)
      print("hover in")
      if self.anning:
          self.polygon_item.line_hovering = True
          self.setPen(QtGui.QPen(self.color, self.width * 1.4))
      super(LineItem, self).hoverEnterEvent(ev)
  
file_path: PaddleSeg/EISeg/eiseg/widget/line.py
imports: from qtpy import QtWidgets, QtGui, QtCore
label_desc: Use image node_id 6 for calling the LineItem obj's underlying member method code with example usage: obj.hoverEnterEvent(ev) without return types