input: Write a function to implement a Python program that stores and queries user data. The function should store the user data in a JSON file and provide a way to retrieve the data from the file.
  assert store_user_data({"Name": "Alice", "Age": 30}) is None
  assert get_user_data() == {"Name": "Alice", "Age": 30}
  assert store_user_data({"Name": "Bob", "Age": 22}) is None
  assert get_user_data() == {"Name": "Bob", "Age": 22}
output: import json
  
  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)