Returns the result of detect intent with texts as inputs and analyzes the
    sentiment of the query text.

    Using the same `session_id` between requests allows continuation
    of the conversaion.

def detect_intent_with_sentiment_analysis(project_id, session_id, texts,
                                          language_code):
    """Returns the result of detect intent with texts as inputs and analyzes the
    sentiment of the query text.

    Using the same `session_id` between requests allows continuation
    of the conversaion."""
    import dialogflow_v2beta1 as dialogflow
    session_client = dialogflow.SessionsClient()

    session_path = session_client.session_path(project_id, session_id)
    print('Session path: {}\n'.format(session_path))

    for text in texts:
        text_input = dialogflow.types.TextInput(
            text=text, language_code=language_code)

        query_input = dialogflow.types.QueryInput(text=text_input)

        # Enable sentiment analysis
        sentiment_config = dialogflow.types.SentimentAnalysisRequestConfig(
            analyze_query_text_sentiment=True)

        # Set the query parameters with sentiment analysis
        query_params = dialogflow.types.QueryParameters(
            sentiment_analysis_request_config=sentiment_config)

        response = session_client.detect_intent(
            session=session_path, query_input=query_input,
            query_params=query_params)

        print('=' * 20)
        print('Query text: {}'.format(response.query_result.query_text))
        print('Detected intent: {} (confidence: {})\n'.format(
            response.query_result.intent.display_name,
            response.query_result.intent_detection_confidence))
        print('Fulfillment text: {}\n'.format(
            response.query_result.fulfillment_text))
        # Score between -1.0 (negative sentiment) and 1.0 (positive sentiment).
        print('Query Text Sentiment Score: {}\n'.format(
            response.query_result.sentiment_analysis_result
            .query_text_sentiment.score))
        print('Query Text Sentiment Magnitude: {}\n'.format(
            response.query_result.sentiment_analysis_result
            .query_text_sentiment.magnitude))