tected static function set_user_application_passwords( $user_id, $passwords ) {
		return update_user_meta( $user_id, static::USERMETA_KEY_APPLICATION_PASSWORDS, $passwords );
	}

	/**
	 * Sanitizes and then splits a password into smaller chunks.
	 *
	 * @since 5.6.0
	 *
	 * @param string $raw_password The raw application password.
	 * @return string The chunked password.
	 */
	public static function chunk_password( $raw_password ) {
		$raw_password = preg_replace( '/[^a-z\d]/i', '', $raw_password );

		return trim( chunk_split( $raw_password, 4, ' ' ) );
	}
}