Perl web scraper: extract content from data-content on

I'm new to Perl and I researched but I couldn't solve myself, so I need help. I need to get the contents of the "data-content" using the web scraper module, how can I do this?

<li class="test" data-content="xxxxxx" data-style_class="clickable" data-place_id="0101011">xxxxx...</li>

Tnks!