input: def create_virtual_assistant(project_id: str) -> None:
      """ Create a virtual assistant using Python and Dialogflow to handle a basic set of queries. The assistant will continuously prompt
      the user for input, process it using Dialogflow, and print the response.
      >>> create_virtual_assistant('test-project-id')
      User: Who made you?
      Assistant: I was created by developers using Dialogflow.
      User: What is your favorite color?
      Assistant: I don't have a sense of sight, so I don't have a favorite color.
      """
      import dialogflow_v2 as dialogflow
      session_client = dialogflow.SessionsClient()
      session = session_client.session_path(project_id, 'session-id')
  
      while True:
          text = input('User: ')
          text_input = dialogflow.types.TextInput(text=text, language_code='en-US')
          query_input = dialogflow.types.QueryInput(text=text_input)
          response = session_client.detect_intent(session=session, query_input=query_input)
  
          print('Assistant:', response.query_result.fulfillment_text)
output:     import dialogflow_v2 as dialogflow
      session_client = dialogflow.SessionsClient()
      session = session_client.session_path(project_id, 'session-id')
  
      while True:
          text = input('User: ')
          text_input = dialogflow.types.TextInput(text=text, language_code='en-US')
          query_input = dialogflow.types.QueryInput(text=text_input)
          response = session_client.detect_intent(session=session, query_input=query_input)
  
          print('Assistant:', response.query_result.fulfillment_text)