code: def test_bokehjs(self) -> None:
      os.chdir("bokehjs")
      proc = subprocess.Popen(
          ["node", "make", "test"], stdout=subprocess.PIPE
      )
      out, _ = proc.communicate()
      msg = out.decode("utf-8", errors="ignore")
      os.chdir("..")
      print(msg)
      if proc.returncode != 0:
          assert False
  
imports: from __future__ import annotations
  import pytest
  import os
  import subprocess
label_desc: Use image node_id 1 for calling the TestBokehJS obj's underlying member method code with example usage: obj.test_bokehjs() without return types