class_docstr: State manager for groups of widgets.
  
  WidgetGroup handles common problems that arise when dealing with groups of widgets like a control
  panel:
  - Provide a single place for saving / restoring the state of all widgets in the group
  - Provide a single signal for detecting when any of the widgets have changed
code: def setState(self, s):
      for w in self.widgetList:
          n = self.widgetList[w]
          if n not in s:
              continue
          self.setWidget(w, s[n])
  
imports: import inspect
  import weakref
  from .Qt import QtCore, QtWidgets
label_desc: Use image node_id 11 for calling the WidgetGroup obj's underlying member method code with example usage: obj.setState(s) without return types