input: from typing import Dict, Any
  import json
  
  def store_user_data(data: Dict[str, Any]) -> None:
      """Store the given user data into a JSON file named 'user_data.json'.
      >>> store_user_data({"Name": "John", "Age": 25, "City": "New York"})
      """
      with open('user_data.json', 'w') as f:
          json.dump(data, f)
  
  def get_user_data() -> Dict[str, Any]:
      """Retrieve and return user data from the JSON file named 'user_data.json'.
      >>> get_user_data()
      {'Name': 'John', 'Age': 25, 'City': 'New York'}
      """
      with open('user_data.json') as f:
          return json.load(f)
output:     try:
          with open('user_data.json') as f:
              return json.load(f)
      except FileNotFoundError:
          return {}