def _from_dict(cls, _dict):
        """Initialize a SentimentResult object from a json dictionary."""
        args = {}
        if 'document' in _dict:
            args['document'] = DocumentSentimentResults._from_dict(
                _dict.get('document'))
        if 'targets' in _dict:
            args['targets'] = [
                TargetedSentimentResults._from_dict(x)
                for x in (_dict.get('targets'))
            ]
        return cls(**args)