from rasa_dialogflow_interpreter.interpreter import DialogflowInterpreter
from rasa_core.agent import Agent

agent = Agent.load(
    'path/to/dialogue/models',
    interpreter=DialogflowInterpreter(
        'dialogflow-project-name',
        # if you omit the `service_account_json` parameter the value
        # exported to GOOGLE_APPLICATION_CREDENTIALS will be used instead
        service_account_json='dialogflow-project-name.json',
    ))

msg = agent.handle_text('What does it all mean, Dialogflow?')