code: def test_restart_line_wide(self):
      eq = self.assertEqual
      for file, mul, extra in (("", 22, ""), ("finame", 21, "=")):
          width = 60
          bar = mul * "="
          with self.subTest(file=file, bar=bar):
              file = file or "Shell"
              line = pyshell.restart_line(width, file)
              eq(len(line), width)
              eq(line, f"{bar+extra} RESTART: {file} {bar}")
  
imports: from idlelib import pyshell
  import unittest
  from test.support import requires
  from tkinter import Tk
label_desc: Use image node_id 1 for calling the FunctionTest obj's underlying member method code with example usage: obj.test_restart_line_wide() without return types