code: def test_pyerr(self):
      o = new_output(
          output_type="pyerr",
          ename="NameError",
          evalue="Name not found",
          traceback=["frame 0", "frame 1", "frame 2"],
      )
      self.assertEqual(o.output_type, "pyerr")
      self.assertEqual(o.ename, "NameError")
      self.assertEqual(o.evalue, "Name not found")
      self.assertEqual(o.traceback, ["frame 0", "frame 1", "frame 2"])
  
imports: from __future__ import annotations
  from unittest import TestCase
  import pytest
  from nbformat.v3.nbbase import NotebookNode, nbformat, new_author, new_code_cell, new_heading_cell, new_metadata, new_notebook, new_output, new_text_cell, new_worksheet
label_desc: Use image node_id 3 for calling the TestCell obj's underlying member method code with example usage: obj.test_pyerr() without return types