Update DiaBLa.py

DiaBLa.py

@@ -112,7 +112,11 @@ class Diabla(datasets.GeneratorBasedBuilder):
                             'user1': datasets.features.Sequence(
                                 {
                                    'rolenum': datasets.Value('int64'),
-                                   'role': datasets.Value('string'),
+                                   'role': datasets.features.Sequence(
+                                       [ 
+                                           datasets.Value('string')
+                                       ]
+                                   )
                                    'initiated_dialogue': datasets.Value('bool'),
                                    'turn_number': datasets.Value('int64'),
                                    'lang': datasets.Value('string'),
@@ -121,7 +125,11 @@ class Diabla(datasets.GeneratorBasedBuilder):
                             'user2': datasets.features.Sequence(
                                 {
                                    'rolenum': datasets.Value('int64'),
-                                   'role': datasets.Value('string'),
+                                   'role': datasets.features.Sequence(
+                                       [ 
+                                           datasets.Value('string')
+                                       ]
+                                   )
                                    'initiated_dialogue': datasets.Value('bool'),
                                    'turn_number': datasets.Value('int64'),
                                    'lang': datasets.Value('string'),