code: def test_resources_none(self, test_plot) -> None:
      r = bes.server_session(
          test_plot, session_id="fakesession", resources=None
      )
      assert "resources=none" in r
  
imports: from __future__ import annotations
  import pytest
  import bs4
  import bokeh.embed.server
label_desc: Use image node_id 5 for calling the TestServerSession obj's underlying member method code with example usage: obj.test_resources_none(test_plot) without return types