Update DiaBLa.py

DiaBLa.py

@@ -77,28 +77,26 @@ class Diabla(datasets.GeneratorBasedBuilder):
                         }
                     ),
                     
-                    'dialogue_history': datasets.features.Sequence(
-                        [
-                            datasets.features.Sequence(
-                                {
-                                    'id': datasets.Value('string'),
-                                    'orig': datasets.Value('string'),
-                                    'norm': datasets.Value('string'),
-                                    'mt': datasets.Value('string'),
-                                    'ref': datasets.Value('string'),
-                                    'utterance_meta': datasets.features.Sequence(
-                                        {
-                                            'eval-judgment': datasets.Value("string"),  # possible values = ['poor', 'medium', 'perfect']
-                                             'eval-verbatim': datasets.Value("string"),
-                                             'eval-problems': [
-                                                 datasets.Value("string"), # possible values = ['coherence', 'grammar', 'meaning', 'word choice', 'style', 'other']
-                                              ],
-                                             'lang': datasets.Value("string"), # possible values = ['english', 'french']
-                                        }
-                                    ),
-                             }),
-                        ]
-                    )
+                    'dialogue_history': [
+                        datasets.features.Sequence(
+                            {
+                                'id': datasets.Value('string'),
+                                'orig': datasets.Value('string'),
+                                'norm': datasets.Value('string'),
+                                'mt': datasets.Value('string'),
+                                'ref': datasets.Value('string'),
+                                'utterance_meta': datasets.features.Sequence(
+                                    {
+                                        'eval-judgment': datasets.Value("string"),  # possible values = ['poor', 'medium', 'perfect']
+                                         'eval-verbatim': datasets.Value("string"),
+                                         'eval-problems': [
+                                             datasets.Value("string"), # possible values = ['coherence', 'grammar', 'meaning', 'word choice', 'style', 'other']
+                                          ],
+                                         'lang': datasets.Value("string"), # possible values = ['english', 'french']
+                                    }
+                               )                             
+                           })
+                    ]
                 }
             ),
             # TODO?