class_docstr: Indicates that a setting is about to change, allows a listener to cancel the change
  
      
code: def allow_change(self):
      return self.__allow_change
  
imports: from ._change_setting_event import ChangeSettingEvent
label_desc: Use image node_id 3 for calling the BeforeChangeSettingEvent obj's underlying member method code with example usage: obj.allow_change() and returns: self