class_docstr: Container for a label + progress bar that also allows its child widgets
  to be hidden without changing size.
code: def eventFilter(self, obj, ev):
      return ev.type() == QtCore.QEvent.Type.Paint
  
imports: from time import perf_counter
  from ..Qt import QtCore, QtGui, QtWidgets
label_desc: Use image node_id 2 for calling the ProgressWidget obj's underlying member method code with example usage: obj.eventFilter(obj, ev) and returns: unknown