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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 MessageOutput object from a json dictionary."""

        args = {}
        if 'generic' in _dict:
            args['generic'] = [
                DialogRuntimeResponseGeneric._from_dict(x)
                for x in (_dict.get('generic'))
            ]
        if 'intents' in _dict:
            args['intents'] = [
                RuntimeIntent._from_dict(x) for x in (_dict.get('intents'))
            ]
        if 'entities' in _dict:
            args['entities'] = [
                RuntimeEntity._from_dict(x) for x in (_dict.get('entities'))
            ]
        if 'actions' in _dict:
            args['actions'] = [
                DialogNodeAction._from_dict(x) for x in (_dict.get('actions'))
            ]
        if 'debug' in _dict:
            args['debug'] = MessageOutputDebug._from_dict(_dict.get('debug'))
        if 'user_defined' in _dict:
            args['user_defined'] = _dict.get('user_defined')
        return cls(**args)