def features(self):
        features = []
        for review_line in self.review_lines:
            features.extend(review_line.features)
        return features
Initialize the instance
dataset/ETHPy150Open nltk/nltk/nltk/corpus/reader/reviews.py/Review.features--crossover with--dataset/ETHPy150Open boundary/pulse-api-cli/boundary/metric_export.py/MetricExport.__init__