Fix unit test

src/promptflow-evals/tests/evals/unittests/test_save_eval.py

@@ -8,22 +8,22 @@
 from promptflow.evals.evaluators import content_safety
 
 
+def get_evaluators_from_module(namespace: Any, exceptions: Optional[List[str]] = None) -> List[Type]:
+    evaluators = []
+    for name, obj in inspect.getmembers(namespace):
+        if inspect.isclass(obj):
+            if exceptions and name in exceptions:
+                continue
+            evaluators.append(obj)
+    return evaluators
+
+
 @pytest.mark.unittest
 class TestSaveEval:
     """Test saving evaluators."""
 
-    @staticmethod
-    def _get_evaluators_from_module(namespace: Any, exceptions: Optional[List[str]] = None) -> List[Type]:
-        evaluators = []
-        for name, obj in inspect.getmembers(namespace):
-            if inspect.isclass(obj):
-                if exceptions and name in exceptions:
-                    continue
-                evaluators.append(obj)
-        return evaluators
-
-    EVALUATORS = _get_evaluators_from_module(evaluators)
-    RAI_EVALUATORS = _get_evaluators_from_module(content_safety)
+    EVALUATORS = get_evaluators_from_module(evaluators)
+    RAI_EVALUATORS = get_evaluators_from_module(content_safety)
 
     @pytest.mark.parametrize('evaluator', EVALUATORS)
     def test_save_evaluators(self, tmpdir, pf_client, evaluator) -> None: