code: def test_do_not_accept_non_tag_path(
      self, container: MetadataContainer
  ):
      random_path = "some/path"
      container[random_path].add(fake.unique.word())
      container.sync()
  
      with pytest.raises(AttributeError):
          # backends accepts `'sys/tags'` only
          container[random_path].fetch()
  
imports: import random
  from datetime import datetime, timezone
  import pytest
  from neptune.metadata_containers import MetadataContainer
  from tests.e2e.base import AVAILABLE_CONTAINERS, BaseE2ETest, fake
label_desc: Use image node_id 1 for calling the TestStringSet obj's underlying member method code with example usage: obj.test_do_not_accept_non_tag_path(container) without return types