<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _from_dict(cls, _dict):
 """Initialize a DialogRuntimeResponseGeneric object from a json dictionary."""

        args = {}
        if 'response_type' in _dict:
            args['response_type'] = _dict.get('response_type')
        else:
            raise ValueError(
                'Required property \'response_type\' not present in DialogRuntimeResponseGeneric JSON'
            )
        if 'text' in _dict:
            args['text'] = _dict.get('text')
        if 'time' in _dict:
            args['time'] = _dict.get('time')
        if 'typing' in _dict:
            args['typing'] = _dict.get('typing')
        if 'source' in _dict:
            args['source'] = _dict.get('source')
        if 'title' in _dict:
            args['title'] = _dict.get('title')
        if 'description' in _dict:
            args['description'] = _dict.get('description')
        if 'preference' in _dict:
            args['preference'] = _dict.get('preference')
        if 'options' in _dict:
            args['options'] = [
                DialogNodeOutputOptionsElement._from_dict(x)
                for x in (_dict.get('options'))
            ]
        if 'message_to_human_agent' in _dict:
            args['message_to_human_agent'] = _dict.get('message_to_human_agent')
        if 'topic' in _dict:
            args['topic'] = _dict.get('topic')
        if 'dialog_node' in _dict:
            args['dialog_node'] = _dict.get('dialog_node')
        if 'suggestions' in _dict:
            args['suggestions'] = [
                DialogSuggestion._from_dict(x)
                for x in (_dict.get('suggestions'))
            ]
        return cls(**args)