input: def store_and_query_user_data(user_data: dict) -> str:
      """Stores user data in a JSON file and then retrieves and returns it as a string.
      
      >>> user_data = {"Name": "John", "Age": 25, "City": "New York"}
      >>> stored_data = store_and_query_user_data(user_data)
      >>> print(stored_data)
      '{"Name": "John", "Age": 25, "City": "New York"}'
      """
      import json
  
      def store_user_data(data):
          with open('user_data.json', 'w') as f:
              json.dump(data, f)
  
      def get_user_data():
          with open('user_data.json') as f:
              return json.load(f)
  
      store_user_data(user_data)
      retrieved_data = get_user_data()
      return json.dumps(retrieved_data)
output:     import json
  
      def store_user_data(data):
          with open('user_data.json', 'w') as f:
              json.dump(data, f)
  
      def get_user_data():
          with open('user_data.json') as f:
              return json.load(f)
  
      store_user_data(user_data)
      retrieved_data = get_user_data()
      return json.dumps(retrieved_data)