Update dollar_street_test.py

dollar_street_test.py

@@ -69,7 +69,7 @@ class Dataset(datasets.GeneratorBasedBuilder):
         """Yields examples."""
         df = pd.read_csv(examples_csv)
         for c in _JSON_COLS:
-            df[c] = df[c].apply(json.loads(x))
+            df[c] = df[c].apply(json.loads)
 
         for r_idx, r in df.iterrows():
             r_dict = r.to_dict()