input: Write a python function to create a SocialNetworkUser instance and update its attributes.
  assert update_user("Alice", 30, ["reading", "hiking"]) == ("Alice", 30, ["reading", "hiking"])
  assert update_user("Bob", 25, ["gaming", "cooking"]) == ("Bob", 25, ["gaming", "cooking"])
  assert update_user("Charlie", 20, ["music", "sports"]) == ("Charlie", 20, ["music", "sports"])
output: class SocialNetworkUser:
      def __init__(self, name, age, interests):
          self.name = name
          self.age = age
          self.interests = interests
  
  def update_user(name, age, interests):
      user = SocialNetworkUser(name, age, interests)
      return (user.name, user.age, user.interests)