Unicode error while running evaluation on tiny-dev dataset about language HOT 4 CLOSED

    raw_results_by_id = [(int(res["unique_id"] + 1), dict(res)) for res in raw_results]

    # Cast example id to int32 for each example, similarly to the raw results.
    sess = tf.Session()
    all_candidates = candidates_dict.items()
    example_ids = tf.to_int32(np.array([int(k) for k, _ in all_candidates
                                        ])).eval(session=sess)
    examples_by_id = list(zip(example_ids, all_candidates))

    # Cast unique_id also to int32 for features.
    feature_ids = []
    features = []
    for f in dev_features:
        feature_ids.append(f.features.feature["unique_ids"].int64_list.value[0] + 1)
        features.append(dict(f.features.feature))
    feature_ids = tf.to_int32(np.array(feature_ids)).eval(session=sess)
    features_by_id = list(zip(feature_ids, features))

    # Join examplew with features and raw results.
    examples = []
    merged = sorted(examples_by_id + raw_results_by_id + features_by_id, key=lambda x: x[0])