class_docstr: Allows radio buttons to function as booleans when `exclusive` is *True*
code: def __init__(self, param, depth):
      self.emitter = Emitter()
      super().__init__(param, depth)
  
imports: from ...None import functions
  from ...Qt import QtWidgets
  from ...SignalProxy import SignalProxy
  from ..ParameterItem import ParameterItem
  from .None import BoolParameterItem, SimpleParameter
  from .basetypes import Emitter, GroupParameter, GroupParameterItem, WidgetParameterItem
  from .list import ListParameter
label_desc: Use image node_id 1 to create a new RadioParameterItem object from inherited base classes: BoolParameterItem with example: obj = RadioParameterItem(param, depth)