import json

class Utility:

    def read_emotion_list(self):
        with open('./emotion_mapping_finalized.json') as emo_mapping_file:
            finalized_emotions = json.load(emo_mapping_file)
        emotions_mapping = {}
        for key, values in finalized_emotions.items():
            for emotion in values:
                emotions_mapping[emotion] = key
        return list(finalized_emotions.keys())