Admin Columns Pro API method for fetching layouts by post type

acp_get_layouts_by_post_type.php

<?php

/**
 * @param string $post_type
 *
 * @return \ACP\Layout[]
 */
function acp_get_layouts_by_post_type( string $post_type ) : array {
	$list_screen = new \ACP\ListScreen\Post( $post_type );
	$layouts = new \ACP\Layouts( $list_screen );

	return $layouts->get_layouts();
}

/**
 * Example Usage
 */
add_action( 'admin_init', function() {
	$layouts = acp_get_layouts_by_post_type( 'post' );
} );