code: def hoverLeaveEvent(self, ev):
      self.polygon_hovering = False
      if not self.hasFocus():
          self.setBrush(self.halfInsideColor)
      super(PolygonAnnotation, self).hoverLeaveEvent(ev)
  
imports: from qtpy import QtWidgets, QtGui, QtCore
  from .None import GripItem, LineItem, BBoxAnnotation
label_desc: Use image node_id 16 for calling the PolygonAnnotation obj's underlying member method code with example usage: obj.hoverLeaveEvent(ev) without return types