apply_filters( "expiration_of_site_transient_{$transient}", int $expiration, mixed $value, string $transient )

2663	 * @since 4.4.02664	 *2665	 * @param int    $expiration Time until expiration in seconds. Use 0 for no expiration.2666	 * @param mixed  $value      New value of site transient.2667	 * @param string $transient  Transient name.2668	 */2669	$expiration = apply_filters( "expiration_of_site_transient_{$transient}", $expiration, $value, $transient );2670 2671	if ( wp_using_ext_object_cache() || wp_installing() ) {2672		$result = wp_cache_set( $transient, $value, 'site-transient', $expiration );2673	} else {2674		$transient_timeout = '_site_transient_timeout_' . $transient;2675		$option            = '_site_transient_' . $transient;