wp-includes/ms-site.php:375Queue site meta for lazy-loading.
$site_idsarrayfunction wp_lazyload_site_meta( array $site_ids ) { if ( empty( $site_ids ) ) { return; } $lazyloader = wp_metadata_lazyloader(); $lazyloader->queue_objects( 'blog', $site_ids );}Introduced in 6.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ms-site.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.