$ pip install rasa
$ rasa init
$ ls 
  __init__.py 
  actions.py
  config.yml 
  credentials.yml
  data/nlu.md 
  data/stories.md 
  domain.yml 
  endpoints.yml
  models/
$ rasa train
$ rasa shell

"""Install the following requirements:
    dialogflow        0.5.1
    google-api-core   1.4.1
"""
import dialogflow
from google.api_core.exceptions import InvalidArgument

DF_PROJECT_ID = 'google-project-id'
DF_LANGUAGE = 'en-US'
GOOGLE_APPLICATION_CREDENTIALS = '1234567abcdef.json'
SESSION_ID = 'current-user-id'

text_to_be_analyzed = "Hi! I'm David and I'd like to eat some sushi, can you help me?"

session_client = dialogflow.SessionsClient()
session = session_client.session_path(DF_PROJECT_ID, SESSION_ID)

text_input = dialogflow.types.TextInput(text=text_to_be_analyzed, language_code=DF_LANGUAGE)
query_input = dialogflow.types.QueryInput(text=text_input)

try:
    response = session_client.detect_intent(session=session, query_input=query_input)
except InvalidArgument:
    raise

print("Query text:", response.query_result.query_text)
print("Detected intent:", response.query_result.intent.display_name)
print("Detected intent confidence:", response.query_result.intent_detection_confidence)