wp_sitemaps_posts_pre_max_num_pages
Filter Hook: Filters the max number of pages before it is generated.
Source: wp-includes/sitemaps/providers/class-wp-sitemaps-posts.php:176
WP_Sitemaps_Posts::get_posts_query_args()
Method: Returns the query args for retrieving posts to list in the sitemap.
Source: wp-includes/sitemaps/providers/class-wp-sitemaps-posts.php:201