input: from typing import Tuple
  
  def play_game(player1: str, player2: str) -> str:
      """ A function to determine the winner of a rock-paper-scissors game based on the choices of the players.
      It defines the winning rules and compares the choices of the players to return the appropriate result.
      >>> play_game('rock', 'scissors')
      'Player 1 wins!'
      >>> play_game('paper', 'rock')
      'Player 1 wins!'
      >>> play_game('scissors', 'paper')
      'Player 1 wins!'
      >>> play_game('rock', 'rock')
      'It is a draw!'
      >>> play_game('paper', 'scissors')
      'Player 2 wins!'
      """
      rules = {'rock': 'scissors', 'scissors': 'paper', 'paper': 'rock'}
      if player1 == player2:
          return 'It is a draw!'
      elif rules[player1] == player2:
          return 'Player 1 wins!'
      elif rules[player2] == player1:
          return 'Player 2 wins!'
  
  player1 = input('Player 1, make a choice: rock, paper, or scissors? ').lower()
  player2 = input('Player 2, make a choice: rock, paper, or scissors? ').lower()
  result = play_game(player1, player2)
  print(result)
output:     
      rules = {'rock': 'scissors', 'scissors': 'paper', 'paper': 'rock'}
      if player1 == player2:
          return 'It is a draw!'
      elif rules[player1] == player2:
          return 'Player 1 wins!'
      elif rules[player2] == player1:
          return 'Player 2 wins!'
  