Returns the tags assigned to a post_id. If no ID is provided, this will return all the tags that are not empty.
<!--ALL TAGS (NOT EMPTY)-->
{{tags assign_to="tags"}}
<aside class="widget widget_tag_cloud">
<h3 class="sidebar-title">Tags</h3>
<div class="tagcloud">
{{foreach $tags.data as $tag}}
<a href="{{$tag.permalink}}" class="tag-{{$tag.slug}}" title="{{$tag.name}}">{{$tag.name}}</a>
{{/foreach}}
</div>
</aside>
<!--TAGS FOR AN SINGLE POST-->
{{tags assign_to="tags" post_id="234"}}
<aside class="widget widget_tag_cloud">
<h3 class="sidebar-title">Tags</h3>
<div class="tagcloud">
{{foreach $tags.data as $tag}}
<a href="{{$tag.permalink}}" class="tag-{{$tag.slug}}" title="{{$tag.name}}">{{$tag.name}}</a>
{{/foreach}}
</div>
</aside>