code: def toggle_toolitem(self, name, toggled):
      if name not in self._toolitems:
          return
      for toolitem, signal in self._toolitems[name]:
          toolitem.handler_block(signal)
          toolitem.set_active(toggled)
          toolitem.handler_unblock(signal)
  
imports: import functools
  import io
  import os
  import matplotlib
  from matplotlib import _api, backend_tools, cbook
  from matplotlib.backend_bases import ToolContainerBase, KeyEvent, LocationEvent, MouseEvent, ResizeEvent, CloseEvent
  from gi.repository import Gio, GLib, Gtk, Gdk, GdkPixbuf
  from .None import _backend_gtk
  from ._backend_gtk import _BackendGTK, _FigureCanvasGTK, _FigureManagerGTK, _NavigationToolbar2GTK, TimerGTK
label_desc: Use image node_id 6 for calling the ToolbarGTK4 obj's underlying member method code with example usage: obj.toggle_toolitem(name, toggled) without return types