WordPress at a glance
function is not described

wp_dashboard_rss_output() WP 2.5.0

Display generic dashboard RSS widget feed.

No Hooks.

Return

Nothing (null).

Usage

wp_dashboard_rss_output( $widget_id );
$widget_id(string) (required)

Code of wp dashboard rss output: wp-admin/includes/dashboard.php VER 5.1.1

<?php
function wp_dashboard_rss_output( $widget_id ) {
	$widgets = get_option( 'dashboard_widget_options' );
	echo '<div class="rss-widget">';
	wp_widget_rss_output( $widgets[ $widget_id ] );
	echo '</div>';
}