code: def test_str(self):
      self.assertEqual(pprint_edges("", 0), "''")
      self.assertEqual(
          pprint_edges({"a": 1, "b": 2}, 0), "{'a': 1, 'b': 2}"
      )
      self.assertEqual(
          pprint_edges([{"a": 1, "b": 2}] * 20, 1),
          "[{'a': 1, 'b': 2},\n\n ... omitted 18 line(s)\n\n {'a': 1, 'b': 2}]",
      )
      self.assertEqual(
          pprint_edges([{"a": 1, "b": 2}] * 8, 4),
          pprint_edges([{"a": 1, "b": 2}] * 8, 3),
      )
      self.assertEqual(
          update_kwargs({"a": 1}, a=2, b=3), {"a": 2, "b": 3}
      )
  
imports: from __future__ import annotations
  import os
  import shutil
  import tempfile
  import unittest
  import torch
  from monai.bundle import update_kwargs
  from monai.bundle.utils import load_bundle_config
  from monai.networks.nets import UNet
  from monai.utils import pprint_edges
  from tests.utils import command_line_tests, skip_if_windows
label_desc: Use image node_id 1 for calling the TestPPrintEdges obj's underlying member method code with example usage: obj.test_str() without return types