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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def read_file(self):
        '''load config from local file'''
        if os.path.exists(self.experiment_file):
            try:
                with open(self.experiment_file, 'r') as file:
                    return json.load(file)
            except ValueError:
                return {}
        return {}