apply_filters( 'edit_posts_per_page', int $posts_per_page, string $post_type )

1289	 *1290	 * @since 2.8.01291	 *1292	 * @param int    $posts_per_page Number of posts to be displayed. Default 20.1293	 * @param string $post_type      The post type.1294	 */1295	$posts_per_page = apply_filters( 'edit_posts_per_page', $posts_per_page, $post_type );1296 1297	$query = compact( 'post_type', 'post_status', 'perm', 'order', 'orderby', 'posts_per_page' );1298 1299	// Hierarchical types require special args.1300	if ( is_post_type_hierarchical( $post_type ) && empty( $orderby ) ) {1301		$query['orderby']                = 'menu_order title';