WordPress at a glance
function is not described

register_block_core_latest_posts() WP 1.0

Registers the core/latest-posts block on server.

No Hooks.

Return

Nothing (null).

Usage

register_block_core_latest_posts();

Code of register block core latest posts: wp-includes/blocks/latest-posts.php VER 5.0.3

<?php
function register_block_core_latest_posts() {
	register_block_type(
		'core/latest-posts',
		array(
			'attributes'      => array(
				'categories'      => array(
					'type' => 'string',
				),
				'className'       => array(
					'type' => 'string',
				),
				'postsToShow'     => array(
					'type'    => 'number',
					'default' => 5,
				),
				'displayPostDate' => array(
					'type'    => 'boolean',
					'default' => false,
				),
				'postLayout'      => array(
					'type'    => 'string',
					'default' => 'list',
				),
				'columns'         => array(
					'type'    => 'number',
					'default' => 3,
				),
				'align'           => array(
					'type' => 'string',
				),
				'order'           => array(
					'type'    => 'string',
					'default' => 'desc',
				),
				'orderBy'         => array(
					'type'    => 'string',
					'default' => 'date',
				),
			),
			'render_callback' => 'render_block_core_latest_posts',
		)
	);
}