Source

File: wp-includes/ms-network.php

function clean_network_cache( $ids ) {
	global $_wp_suspend_cache_invalidation;

	if ( ! empty( $_wp_suspend_cache_invalidation ) ) {
		return;
	}

	foreach ( (array) $ids as $id ) {
		wp_cache_delete( $id, 'networks' );

		/**
		 * Fires immediately after a network has been removed from the object cache.
		 *
		 * @since 4.6.0
		 *
		 * @param int $id Network ID.
		 */
		do_action( 'clean_network_cache', $id );
	}

	wp_cache_set( 'last_changed', microtime(), 'networks' );
}