code: def test_str(self) -> None:
      r0 = resources.Resources(mode="cdn")
      assert str(r0) == "Resources(mode='cdn')"
  
      r1 = resources.Resources(mode="inline")
      assert str(r1) == "Resources(mode='inline')"
  
      r2 = resources.Resources(mode="server-dev")
      assert str(r2) == "Resources(mode='server', dev=True)"
  
      r3 = resources.Resources(
          mode="server-dev", components=["bokeh", "bokeh-gl"]
      )
      assert (
          str(r3)
          == "Resources(mode='server', dev=True, components=['bokeh', 'bokeh-gl'])"
      )
  
imports: from __future__ import annotations
  import pytest
  import os
  import re
  import subprocess
  import sys
  import bs4
  from packaging.version import Version
  import bokeh.util.version
  from bokeh.models import Model
  from bokeh.resources import RuntimeMessage, _get_cdn_urls
  from bokeh.settings import LogLevel, settings
  import bokeh.resources
label_desc: Use image node_id 3 for calling the TestResources obj's underlying member method code with example usage: obj.test_str() without return types