wp-includes/option.php:349Primes the cache of all options registered with a specific option group.
$option_groupstringfunction wp_prime_option_caches_by_group( $option_group ) { global $new_allowed_options; if ( isset( $new_allowed_options[ $option_group ] ) ) { wp_prime_option_caches( $new_allowed_options[ $option_group ] ); }}Introduced in 6.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/option.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.