input: Write a function to store and query user data. The function should accept a dictionary containing user data, and store it in a JSON file. Another function should be provided to read and return the stored data from the JSON file.
  assert store_user_data({"Name": "John", "Age": 25, "City": "New York"})==None
  assert get_user_data()=={"Name": "John", "Age": 25, "City": "New York"}
  assert store_user_data({"Name": "Alice", "Age": 30, "City": "Los Angeles"})==None
  assert get_user_data()=={"Name": "Alice", "Age": 30, "City": "Los Angeles"}
  assert store_user_data({})==None
  assert get_user_data()=={}
output: def store_user_data(user_data):
      with open('user_data.json', 'w') as file:
          json.dump(user_data, file)
  
  def get_user_data():
      with open('user_data.json', 'r') as file:
          return json.load(file)