ユーザーが新しいアカウントを作成できるようプログラムを書いてください。
def create_account():
    username = input("Please enter a username: ")
    password = input("Please enter a password: ")
    email = input("Please enter your email address: ")
 
    # Validate inputs
    if username == "" or password == "" or email == "":
        print("All fields are required.")
        return False
    
    # Create user account
    user =  User(username, password, email)
    user.save()
    print("Your account has been created.")
    return True