/**
* Initialize the head contributions from the question engine
*
* @return string
*/
public function get_html_head_contributions()
{
$result = '';
// get the slots ids from the quba layout
$slots = explode(',', $this->attempt->qubalayout);
// next load the slot headhtml and initialize question engine js
foreach ($slots as $slot) {
$result .= $this->quba->render_question_head_html($slot);
}
$result .= \question_engine::initialise_js();
return $result;
}
