code: def focusInEvent(self, ev):
      if not self.anning:
          self.setBrush(self.insideColor)
  
imports: from qtpy import QtWidgets, QtGui, QtCore
  from .None import GripItem, LineItem, BBoxAnnotation
label_desc: Use image node_id 17 for calling the PolygonAnnotation obj's underlying member method code with example usage: obj.focusInEvent(ev) without return types