class User { protected $name; protected $email; protected $password; public function __construct($name, $email, $password) { $this->name = $name; $this->email = $email; $this->password = $password; } } function addUser($name, $email, $password) { $user = new User($name, $email, $password); // code to add user to database or store object in memory return $user; } // Example usage of addUser method $newUser = addUser("John Doe", "johndoe@example.com", "password123");In this example, we have defined a User class that has name, email, and password attributes. The addUser function takes in these attributes as arguments and creates a new User object with them. The code to add the user to a database or store the object in memory is not shown, but would likely involve some additional database or file I/O code. It's hard to determine the package library without more context, but it could be part of a larger user authentication or management system library in PHP.