code: def main(self, standalone=False):
          
          window = _Tkinter.Tk()
          sc = _TreeWidget.ScrolledCanvas(window, bg="white",\
                                         highlightthickness=0, takefocus=1)
          sc.frame.pack(expand=1, fill="both")
          item = _ReferrerTreeItem(window, self.get_tree(), self)
          node = _TreeNode(sc.canvas, None, item)
          node.expand()
          if standalone:
              window.mainloop()
docs: Create interactive browser window.
  
          keyword arguments
          standalone -- Set to true, if the browser is not attached to other
          windows