如何使用用于Dialogflow v2的Python客户端发送文本响应？

pip install dialogflow

import dialogflow_v2 as dialogflow
from google.api_core.exceptions import InvalidArgument

def detect_intent_texts(project_id, session_id, texts, language_code):
    session_client = dialogflow.SessionsClient()

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

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

        try:
            response = session_client.detect_intent(
                request={'session': session, 'query_input': query_input}
            )
        except InvalidArgument:
            raise

        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))

project_id = 'YOUR_PROJECT_ID'
session_id = 'YOUR_SESSION_ID'
texts = ['Hello', 'How are you?']
language_code = 'en-US'

detect_intent_texts(project_id, session_id, texts, language_code)