refactor: change pass → docstring for tests

pipeline/feature_extractors.py

@@ -17,13 +17,13 @@ class FeatureExtractor(ABC):
     """Feature extractor interface."""
     # TODO: #API -- decide if .features will be a member variable
     def setup(self):
-        pass
+        """Setup the feature extractor -- validate input files & config"""
 
     def run(self):
-        pass
+        """Run the feature extractor -- extract features"""
 
     def teardown(self):
-        pass
+        """Teardown the feature extractor -- clean up any temporary files created during setup"""
 
 class LaughterFeatureExtractor(FeatureExtractor):
     """Feature extractor for laughter detection.