cleanup

tiger.py

@@ -294,10 +294,11 @@ def tiger_exhibit(transcripts: pd.DataFrame, mode: str, check_off_targets: bool,
     off_target_predictions = pd.DataFrame()
 
     if mode == 'all':
-        pass
+        pass  # nothing to do!
 
-    elif mode == 'titration':  # TODO: and titration candidates
+    elif mode == 'titration':
         on_target_predictions = top_guides_per_transcript(on_target_predictions)
+        # TODO: add titration candidates
 
     else:
         raise NotImplementedError