input: 
  from typing import List
  
  
  def create_virtual_assistant() -> None:
      """ Create a virtual assistant using Python and Dialogflow to answer a basic set of questions.
      The assistant will continuously prompt the user for input and respond using Dialogflow's detect_intent method.
      >>> create_virtual_assistant()
      User: What is the weather today?
      Assistant: Today's forecast is sunny with a high of 75 degrees.
      User: What is the capital of France?
      Assistant: The capital of France is Paris.
      User: Exit
      Assistant: Goodbye!
      """
  
output:     import dialogflow
      from google.cloud import dialogflow_v2 as dialogflow
      from google.api_core.exceptions import InvalidArgument
  
      DIALOGFLOW_PROJECT_ID = 'your-project-id'
      DIALOGFLOW_LANGUAGE_CODE = 'en'
      SESSION_ID = 'me'
  
      session_client = dialogflow.SessionsClient()
      session = session_client.session_path(DIALOGFLOW_PROJECT_ID, SESSION_ID)
  
      while True:
          user_input = input("User: ")
          if user_input.lower() == "exit":
              print("Assistant: Goodbye!")
              break
  
          text_input = dialogflow.types.TextInput(text=user_input, language_code=DIALOGFLOW_LANGUAGE_CODE)
          query_input = dialogflow.types.QueryInput(text=text_input)
  
          try:
              response = session_client.detect_intent(session=session, query_input=query_input)
          except InvalidArgument:
              raise
  
          print(f"Assistant: {response.query_result.fulfillment_text}")