Initialize a QueryResult object from a json dictionary.

def _from_dict(cls, _dict):
        """Initialize a QueryResult object from a json dictionary."""
        args = {}
        xtra = _dict.copy()
        if 'id' in _dict:
            args['id'] = _dict.get('id')
            del xtra['id']
        if 'metadata' in _dict:
            args['metadata'] = _dict.get('metadata')
            del xtra['metadata']
        if 'collection_id' in _dict:
            args['collection_id'] = _dict.get('collection_id')
            del xtra['collection_id']
        if 'result_metadata' in _dict:
            args['result_metadata'] = QueryResultMetadata._from_dict(
                _dict.get('result_metadata'))
            del xtra['result_metadata']
        if 'title' in _dict:
            args['title'] = _dict.get('title')
            del xtra['title']
        args.update(xtra)
        return cls(**args)