do_action( 'register_post', string $sanitized_user_login, string $user_email, WP_Error $errors )

3600	 * @param string   $sanitized_user_login The submitted username after being sanitized.3601	 * @param string   $user_email           The submitted email.3602	 * @param WP_Error $errors               Contains any errors with submitted username and email,3603	 *                                       e.g., an empty field, an invalid username or email,3604	 *                                       or an existing username or email.3605	 */3606	do_action( 'register_post', $sanitized_user_login, $user_email, $errors );3607 3608	/**3609	 * Filters the errors encountered when a new user is being registered.3610	 *3611	 * The filtered WP_Error object may, for example, contain errors for an invalid3612	 * or existing username or email address. A WP_Error object should always be returned,