code: def test(self):
      provider = assets.get_default_assets_zip_provider()
      self.assertIsNotNone(provider)
  
      assets_zip = provider()
      with zipfile.ZipFile(assets_zip) as zf:
          with zf.open("index.html") as index_file:
              self.assertIsInstance(index_file.read(), bytes)
  
imports: import zipfile
  from tensorboard import assets
  from tensorboard import test
label_desc: Use image node_id 1 for calling the AssetsTest obj's underlying member method code with example usage: obj.test() without return types