amp_css_transient_monitoring_threshold apply_filters( 'amp_css_transient_monitoring_threshold', int $threshold ) Description # Filters the threshold to use for disabling transient caching of stylesheets. Parameters # $threshold Maximum average number of transients per day. Source # File: src/BackgroundTask/MonitorCssTransientCaching.php Changelog # Changelog Version Description 1.5.0 Introduced.