input: Write a python function to initialize the game setup by creating a player, a list of rooms, and adding monsters to the rooms.
  ```python
  def setup_game():
      # Create player
      player = Player()
      # Create rooms
      room1 = Room()
      room1.name = "room one"
      room2 = Room()
      room2.name = "room two"
      # Create monsters
      monster1 = Monster()
      monster1.name = "Goblin"
      monster2 = Monster()
      monster2.name = "Orc"
      # Add monsters to rooms
      room1.add_monster(monster1)
      room2.add_monster(monster2)
      return player, [room1, room2]
  
  # Test cases
  player, rooms = setup_game()
  assert player.health == 100
  assert player.location == 'room one'
  assert len(rooms) == 2
  assert rooms[0].name == 'room one'
  assert len(rooms[0].monsters) == 1
  assert rooms[0].monsters[0].name == 'Goblin'
  assert rooms[1].name == 'room two'
  assert len(rooms[1].monsters) == 1
  assert rooms[1].monsters[0].name == 'Orc'
output: player.health = 100
      player.location = room1.name
      return player, [room1, room2]