$post_types The post types to get the indexable count for. * * @return Indexable_Count_Collection The indexable count per post type. */ public function get_indexable_count_per_post_type( array $post_types ): Indexable_Count_Collection; /** * Gets the indexable count for a single post type. * * @param string $post_type The post type to get the indexable count for. * * @return Indexable_Count The indexable count for the post type. */ public function get_indexable_count_for_post_type( string $post_type ): Indexable_Count; /** * Get lastmod timestamp for a post type and page range * * Returns the latest post_modified_gmt timestamp for posts in the given range. * Used for schemamap index to enable selective updates. * * @param string $post_type Post type slug. * @param int $page Page number (1-indexed). * @param int $per_page Items per page. * @return string ISO 8601 timestamp (e.g., "2025-10-21T14:23:17Z"). */ public function get_lastmod_for_post_type( string $post_type, int $page, int $per_page ): string; }