input: Write a function to create a user account with hashed password using bcrypt.
  assert create_user_account("John", "J0hnP455w0rd") is True
  assert create_user_account("Alice", "Al1c3P455w0rd") is True
  assert create_user_account("Bob", "B0bP455w0rd") is True
output: import bcrypt
  
  def create_user_account(username, password):
      salt = bcrypt.gensalt()
      hashed_password = bcrypt.hashpw(password.encode('utf-8'), salt)
      return bcrypt.checkpw(password.encode('utf-8'), hashed_password)