code: def test_all_versions_unique(self, versions_class):
      versions = versions_class.get_all()
      assert len(versions) > 0
      s = set()
      for version in versions:
          print(version, s)
          assert version not in s, f"Version {version} is duplicated"
          s.add(version)
  
file_path: responsible-ai-toolbox/responsibleai/tests/tools/shared/test_versions.py
imports: import re
  import pytest
  import semver
  from responsibleai._tools.shared.versions import CausalVersions
label_desc: Use image node_id 2 for calling the TestVersions obj's underlying member method code with example usage: obj.test_all_versions_unique(versions_class) without return types