Setting cache duration depending on WP_DEBUG value.

[KingWebsites]

Hi, I'm using the standard Timber render caching option to improve the page load speed on my site. e.g.
Timber::render('index.twig', $context, 36000);
( https://timber.github.io/docs/v2/guides/performance/ )

But because I have a number of page templates along with ACF flexible elements rendered inside these templates I'd like just one place to set the cache duration, 0 if WP_DEBUG is true, and 36000 if false. I dont want to edit templates between dev and prod.

So far I've added this code to my functions.php to set up a global PHP variable:

		add_action('init', function(){
			$GLOBALS['cache_duration'] = WP_DEBUG ? 0 : 36000;
		});

I use this like so in my PHP templates:
Timber::render('index.twig', $context, $GLOBALS['cache_duration']);

I was just wondering if this was the best solution or if there was a more timber-specific way of doing this? Thanks.