Update Mimic4Dataset.py

Mimic4Dataset.py

@@ -135,7 +135,7 @@ class Mimic4Dataset(datasets.GeneratorBasedBuilder):
             label = data['label']
             items = list(proc_features.keys())
             values =[proc_features[i] for i in items ]
-            procs = {"id" : id,
+            procs = {"id" : items,
                   "value": values}