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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 _from_dict(cls, _dict):
 """Initialize a FeedbackList object from a json dictionary."""

        args = {}
        if 'feedback' in _dict:
            args['feedback'] = [
                GetFeedback._from_dict(x) for x in (_dict.get('feedback'))
            ]
        return cls(**args)