Check if post has more than one image attached

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<?php
$attachments = get_children(
    array(
	'post_type' => 'attachment',
	'post_mime_type' => 'image',
	'post_parent' => $post->ID
    ));
if(count($attachments) > 1) { ?>
    <!-- Do something like show a slider -->
<?php } else { ?>
    <!-- Display a single image -->
<?php } ?>

Instructions:

A pretty simple if statement, wrote this up for my theme framework. In my case I used it to check if the post has more than one image display a slider, else display the single image.