input: def create_virtual_assistant(project_id: str, session_id: str)-> None:
      """ Creates a virtual assistant in Python using Dialogflow to answer basic questions.
      The function continuously takes in user input and returns the corresponding response from Dialogflow.
      
      >>> create_virtual_assistant('test-project', 'test-session')
      User: Hello
      Assistant: Hi there! How can I assist you today?
      User: What is the weather today?
      Assistant: The weather today is sunny.
      """
output:     import dialogflow_v2 as dialogflow
      import os
  
      os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = "path/to/your/service-account-file.json"
  
      session_client = dialogflow.SessionsClient()
      session = session_client.session_path(project_id, session_id)
  
      while True:
          user_input = input("User: ")
          text_input = dialogflow.types.TextInput(text=user_input, language_code='en')
          query_input = dialogflow.types.QueryInput(text=text_input)
          response = session_client.detect_intent(session=session, query_input=query_input)
  
          print(f"Assistant: {response.query_result.fulfillment_text}")