code: def test_set_label(self):
      bar = statusbar.MultiStatusBar(self.root)
      bar.set_label("left", text="sometext", width=10)
      self.assertIn("left", bar.labels)
      left = bar.labels["left"]
      self.assertEqual(left["text"], "sometext")
      self.assertEqual(left["width"], 10)
      bar.set_label("left", text="revised text")
      self.assertEqual(left["text"], "revised text")
      bar.set_label("right", text="correct text")
      self.assertEqual(bar.labels["right"]["text"], "correct text")
  
file_path: cpython/Lib/idlelib/idle_test/test_statusbar.py
imports: from idlelib import statusbar
  import unittest
  from test.support import requires
  from tkinter import Tk
label_desc: Use image node_id 4 for calling the Test obj's underlying member method code with example usage: obj.test_set_label() without return types