Update loader.py

Author: pwolnows

tools/accuracy_checker/accuracy_checker/launcher/loaders/loader.py

@@ -22,6 +22,7 @@
 
 StoredPredictionBatch = namedtuple('StoredPredictionBatch', ['raw_predictions', 'identifiers', 'meta'])
 
+
 class Loader(ClassProvider):
     """
     Interface that describes loading output from another tool.